Category Archives: Michigan Greenstone

50 Shades of Isle Royale Greenstones

**50 Little Isle Royale Greenstones awaiting new homes**

Have you always wanted to own and wear something from Isle Royale? How great would it be if it was a Greenstone Pendant? Greenstone pendants made with Greenstones from Isle Royale are treasured for their beauty and rarity.

Several years ago I purchased a Greenstone collection that had been hidden in a garage in Lake Linden, Michigan for 50 years.

Over the years this stash has been my go-to trove for creating some of my best Isle Royale Greenstone Jewelry, although I already had some Isle Royale stones from other sources.

Our best sellers, by far, are small Greenstone pendants. While in Florida this last winter, my goal was to produce an entire tray of little Greenstone dazzlers. A “tray” consists of 50 Greenstone Pendants (each one fits in a 1 1/8″ X 3/4″ Acrylic container).

Isle Royale Greenstone Pendant — Isle Royale Greenstone with Feldspar in this one.

The smaller the Greenstone the more difficult it is to make a pendant, using conventional wire wrapping tools and techniques. I make many of my own tools to facilitate wrapping these small gemstones. The circumference of these stones are generally between an inch to an inch and a half. Good tools are one secret to producing good jewelry with precious metal wire. I purchase quality tools and adapt them, so I can create delicate pendants. Some of the handtools I create don’t work quite right, but after a couple decades of trial and error, I have invented just the right tools to make small pendants. Although the pendants appear simple, they are not easy to make.

A little Thomsonte inclusion adds to the excellent Chlorastrolite.

If I ever write a book on wire wrapping, I’ll show some adapted wire wrapping tools, but for now I keep some secrets. My best sellers are these small Greenstone Pendants, and I just don’t want the market to be flooded with Snob Appeal Knockoffs.

My small Greenstone pendants have some common traits. 1. They fit in 1-1/8″ X 3/4″ round acrylic gemstone jars. 2. They are made from my finest Greenstones from Isle Royale. 3. They are simply wrapped so as not to distract from the beautiful Greenstones 4. They have small bails that match the small stones (IF you put a larger bail on a tiny stone the proportions become incorrect). 5. The wire wrapping is fairly simple (again so as not to distract form the pattern of these little shiners. 6. Most are under $200! (not bad for a Greenstone actually from Isle Royale).

Each Greenstone has its’ own character, coloration, green shade, and pattern. Greenstones from Isle Royale are generally distinctive from greenstones from the mine dumps in the Keweenaw. Although I have found many mainland stones that you cannot tell from Island Stones, on the whole, and on the average, Island stones are more solid with better patterns.

I sell these little beauties on line, as well as at Copper World in Calumet, Miners North in Traverse City, and The Miners Den in Royal Oak.

Think you can’t afford a Greenstone? As an investment or heirloom, these small Isle Royal Greenstones top the list. They are made from delicate-looking 24 gauge double gold fill wire (Rose or Gold), Argentium Sterling (Tarnish resistant sterling silver), or a combination of the three precious metals. In any setting they make a graduation gift like no other, or a Mother’s Day gift that won’t be forgotten by next week!

These pendants are exceptional examples of Michigan’s official State gemstone, that can be worn with anything. Add a pair of Greenstones earrings, for a beautiful ensemble.

Shop our Michigan Greenstone pendants and earrings now!

Petoskey Stone Pendant on Steroids

Every Christmas the question is; “What should I make for Bonnie?” Bonnie is my bride of 44 years. She already has her choice of thousands of Pendants, and hundreds of beaded treasures she makes for her Etsy site. I have to start thinking way ahead, when it comes to a special Christmas gift for the jewelry maker’s wife.

While cutting, from my large selection of rocks and minerals, I will usually discover a very special piece of material (or several), worthy for a Lapidary Artist’s wife to wear.

Bonnie enjoys wearing simple, yet elegant, pendants; not too showy, but noticeable, none the less. She has a massive collection of “jewelry shirts”. These shirts are usually solid colors that can show off a Pendant, or a set of beads with a wide variety of colors and patterns.

Luck was involved in cutting a Petoskey Stone and finding beautiful, dark eyes. This Petoskey Stone spoke to me, and demanded to be Bonnie’s Christmas Gift.

This past summer’s shop work first produced a very special Petoskey Stone cabochon. Sometimes Michigan’s State Stone is surprising in its multiple variety of colorations, patterns, and uniqueness. The quality of a Petoskey Stone is very subjective, but in general high quality Petoskey Stones are mud free, solid, with a clear patterns.

The primary thing I look for in a fine Petoskey Stone is clarity of pattern. It is not very common to find a solid Petoskey Stone, showing perfectly clear patterns within all the individual Polyps. In most cases the “eyes” of the Polyps, (that are actually mouths), are filled with mud to some extent. This mud can seldom be removed. I usually do not use Muddy Petoskey Stones, but in the case of this stone the “mud” was a good thing, and added some character to a stone. It was a case where Black mud is good.

In the Petoskey Stone I chose for Bonnie’s Pendant; the mouths were filled with Petroleum-rich material, making them almost solid black, BUT the rest of the fossil displayed beautiful, perfectly clear Calcification. The black “Eyes” were so striking; so stunning; that I immediately knew I had the start of a spectacular piece of jewelry. I imagined one of the little Polyps talking to its neighbor; “Hey Harry, you should try some of this grease, it’s really tasty”.

The darkness of a Petoskey Stone, is indicative of the percentage of Petroleum that permeated into the Petoskey Stone during Calcification. Darker Petoskey Stone exude a strong petroleum odor when they are cut. The odor this stone emitted was strong in its a petroleum scent. Petroleum-rich, dark Petoskey Stones also take a better polish than light colored Petoskey Stones, simply because of this petroleum content. This cabochon took an excellent glass-like finish.. OK, I hid this stone from prying eyes for a few months. Hiding any stone in my shop is a dangerous proposition. Fortunately, I was lucid enough to keep track of it for a few months.

Isle Royale greenstones were tumble polished and drilled for the top of Bonnie’s Pendant.

Do I just want to wrap a Petoskey Stone and call it good? NO WAY! A jewelry showpiece, for a special lady, needs more bling than that. Michigan’s State Stone (the Petoskey Stone) needed to be accompanied by Michigan’s State Gemstone (The Isle Royal Greenstone). Several Greenstone, from a decades old collection actually from Isle Royale, were polished and drilled for the top of this pendant. I make them on a bead drilling machine. I admit, drilling Greenstones is a bit extravagant.

The bottom segment of Bonnie’s Christmas Pendant involved Drilling Datolite Beads (from one of the Isle Royale Mines behind the Houghton Walmart) and Unakite beads, (made from Lake Superior beach material) were also added to the pendant mix. I just kept piling on the goodness.

Common white Datolite explodes into something else, when Copper is stirred into the mix.
added a pair of Datolite Beads and a pair of Unakite Beads dressed the top of the bottom segment of Bonnie’s pendant.

The last stone added was a Copper rich Datolite. It was a gorgeous white Datolite with lightning-like streaks of Copper exploding within the Gemstone. Like the Petoskey Stone, this special Datolite told me it wanted to be part of this project. The Datolite was shaped to add as a second component to the Pendant. Bonnie is very fond of copper in her Datolite. The Lightning Datolite swings freely from the bottom of the Petoskey Stone. This configuration is one of my signature features in many of my pendants.

My choice of gold and silver wire allows this pendant to be worn with any color chain or cord.

Here is the finished pendant. You can make your own judgment, but I think it is pretty nice.

Greenstone Turtles

Isle Royale Greenstones are already beach tumbled. Normally I grab a few hundred and after flattening the backs, they’re ready for dopping.

The blog pictures may be a bit out of the order they were accomplished, but you’ll get the idea by reading the text under each picture.

After the finish polish, my Greenstones are sorted into trays according to size and coloration.

My dop sticks of choice are brass rivets.

A typical, beach tumbled, Isle Royale Greenstone

One of these was finished from the above beach tumbled Greenstone. Both stones are ready for Turtles of other jewelry.

One of my favorites are “Picture Frame” pendants. This one is Top to Bottom: Lake Superior Agate, Isle Royale Greenstone w/ Thomsonite, and Datolite from the Isle Royal Mine near Houghton.

Sometimes Greenstones wil be hollow (not good), but on rare occasions the viugs may contain some copper of Crystals (VERY GOOD).

My turtles have Jade undersides. Not that is a bit extravagant!

Pendants made with Islae Royale Greenstones are our best seller.

A finished Turtle pendant.. I’ve assigned them names: This one is “Rocco”.

This was the very first Turtle Pendant I made as a Christmas gift for my buddy;s awesome wife.

TURTLES

Let’s talk about one of the most challenging Pendant projects I’ve ever finished; TURTLES!.

I have actually been thinking about this for a few years, but realizing how much time, materials, and troubles it would be, I’ve put it off. Admittedly I took the cowards way out—it seemed I always had something that was more important to do! I needed to get my Mojo back.

My goal this year was to create what was a roadblock in my brain. Here is the idea. Michigan’s Official State Stone is the Petoskey Stone, and the State Gemstone is the ultra rare Isle Royale Greenstone. We live in NW Michigan where, if you know where to look, nice Petoskey Stones can be harvested.

Petoskey Stones are sometimes referred to as “Turtle Backs” because they resemble turtle shells. Isle Royal Greenstones are said to have an “Alligator Pattern”. Greenstone, if they have a nice pattern, also look like turtle appendages. What if I could combine these two beautiful Michigan stones and made a turtle pendant?

One of the major problems is matching Greenstone patterns so the turtle appendages have a cohesive look.

Recently I manufactured a set of these pendants which were challenging in many ways.

Each turtle required five greenstones that closely matched in size, pattern, and color. This required cutting and polish around hundreds of greenstones, which has taken place over several years. Most of the greenstones used in this project are from an Isle Royale Greenstone collection that I purchased several years ago. These are even more rare than Keweenaw Greenstones. Picking greenstones on Isle Royale is against National park policy. Decades ago authorities on the island were not that particular about guests picking us a few greenstones. Today rangers are quite strict about the regulations regarding picking up rocks and minerals in the national park.

After cutting and polishing all these small stones. Cutting small stones involves gluing them on dop sticks or holding them in your finger with the risk of scuffing your finger tips. Foolishly and unnecessarily I chose the bleeding option many times. Separating them off the dop sticks, pouring out on a table, sorting for size, shape, and color, and finally choosing stones that might be used together for turtles were some of the steps taken over time. Some had to go back for shaping so they could pass muster as heads or tails. Many of the greenstones are up to 10mm in size which makes them large for greenstones. The appendages are all nice enough they could have been used for feature stones in jewelry such as rings or necklaces.

The Petoskey Stones are found by us in several secret locations in northwest lower Michigan, but rarely from beaches. They were sorted 2-3 times for top quality nicely patterned for the turtle backs. They were cut and shaped, mounded in ovals, and polished to a glass-like finish.

The next problem was how to attach the appendages to the turtle; how was I going to join the Petoskey stones and the Greenstones? I looked for a material that could be a backer. What material could be thin enough and strong enough to do this? Jade is strong and tough, often used for guitar picks, so it is strong even when thin. The Petoskey stones and Greenstones were glued onto green jade wafers using a strong 2 part epoxy.

Cutting the turtles requires special lapidary tools and a careful touch. Believe me when I tell you that this procedure was challenging, complicated, and time consuming.

After cutting the turtles out, I developed a procedure for wire wrapping them, which hides the wires behind the turtle. When the turtles hand on a chain, you do not see the bail, or most of the wire wrapping, allowing for no distraction from the beauty of the the Patterns of the Petoskey stone and Greenstones.

It took me months of thought and work to create these pendants.

I cut out a dozen turtles, and posted them on Facebook, receiving over 2,600 likes. It seemed everyone wanted a turtle, but not everyone realized what these turtles might cost.

People wanted them for desk ornaments, or to add to their turtle collections. I think for a turtle collector, this may work, but for someone that wants to put a turtle comprised of sizable Isle Royale Greenstones and Jade just our on a deck; not so good. I would sell these without a bail on the back, but they are designed for wearing.

The first turtle release will be six pendants as Christmas gifts, and perhaps more of the dozen I’ve made, depending on popularity. The scarcity of Gem-Quality Greenstones will severely limit my product every year.

Making Turtles from Greenstones that otherwise could be rings or necklaces is somewhat frivolice, and from a business standpoint, perhaps not wise; but so be it.

Great Lakes Gemstone Pendant on Steroids

It isn’t often that a write a blog about one pendant, but I had to do it with this one.

Extravagant Greenstone Pendant with ten Greenstones plus two Thomsonites — A challenging pendant yet to be named. My two suggestions are “Extravagant Wire Whimsy” or “Don’s Wrestling Match”. Since I’ve already sold it, I told the new owner, she could name it.

Sometimes when wire-wrapping, things happen that you wish had not happened, and you end up going in a totally new direction. This is how I made a Great Lakes Gemstone Pendant on Steroids, and it started by an accident.

It was a heartbreaking moment. While creating a really nice Blue Datolite Pendant a week ago, during the final setting, the top of this rare gem fractured. I am capable of reworking a stone, but I decided, as a challenge, to use the wire frame; adapt it, so to speak, to make another totally different pendant.

The decision to change tracks in the middle of the race, was spurred by thrift, I didn’t want to waste the wire frame I had just built! I looked through a couple trays of Great Lakes Cabochons, and plucked out an amazing dark-eyed Thomsonite that fit well in the bottom of the original wire bundle, but it wasn’t nearly as big as the Datolite I had started with. So I paired this with both a slender Isle Royale Greenstone, and a very unusual Green and dark pink Prehnite. Wow, now I had the challenge I was looking for. How do you securely fit three Great Lakes stones in a space designed for one?

Fortunately, Bonnie (my wife), was not around for all the expletives, as I wrestled to re-shape this wire frame to accommodate new stones. There was much bending, pushing and pulling involved . Most of you do not wire wrap, so I have to explain that it is a finesse skill. Precious metal wire will harden as you work with it, and eventually, if you work it too much, will get brittle and break. After a couple decades of wire wrapping, I generally get a feel for when the wire will break. I HATE when this happens–it means you have wasted wire and time. You have to start all over again. I have to admit, the wire (and myself), were right on the edge of breaking.

close up of Calcite with copper in Greenstone — Notice the Copper included Calcite in the bottom of the long Greenstone.

The pendant took large quantities of coffee over three days, to get it right. I finished the original cage for the stones, but the pendant lacked balance. This is an artistic term that means that it looked “not right”. Not quite that it looked like crap, but something else was needed.

How about some Greenstone beads? Now that would be decadent, wouldn’t it? I strung 8 tiny Greenstone beads along on edge. After this more messing around took place. How do I fit this stone in, how do I attach this all together, that doesn’t look just right, this needs to be fit in and so on. Finally I added a Thomsonite Bead on the top. NAILED IT!! I just know when things have melded.

Extravagant Greenstone Pendant by Snob Appeal Jewelry — Thomsonite, Prehnite, Greenstone

Bonnie liked it also. If it passes the “Bonnie inspection” all is good. She may say “it’s nice” and bring me a cup of coffee, I feel worthy when she does this.

back side of wire pendant — I REALLY liked the rear of this pendant. Doesn’t it look like an abstract art project?.

One of my favorite parts of this pendant, is the back. The wire design on the back, accidentally; No wait; purposely came out amazing. Usually when we sell a pendant, the buyer will examine the front AND the back. I can’t wait for someone to carefully look at the back of this pendant.

When I finish a new pendant, and it passes the Bonnie quality control inspection, I always say that I “Got Lucky Again”. I think I got lucky on this crazy Great Lakes Gemstone on Steroids!

Visit our jewelry pages to see current selections:

Great Lakes Pendants

Greenstones

Thomsonite Pendants

The Most Remarkable Greenstone I’ve Ever Cut

It’s always heartbreaking when a good friend passes away. I hope you will indulge me as I remember Beth Harland, a loyal member or the Grand Traverse Area Rock & Mineral Club.

I recall that John and Beth joined our club in 2005 or 2006, when they moved up after retirement to Traverse City. John became Club President shortly there after and Beth took notes for the Club Newsletter that I edited.

Over the years Beth invested in many pieces of jewelry that I made, and I mentored John in Wire Wrapping. We became close friends.

In 2009 John handed me a Greenstone, and asked if I could make a pendant for Beth. The Greenstone was 3 1/2″ by over 2″! “You want me to cut this Greenstone; are you sure?” Over the course of the next week, I asked him if he was still sure, and the answer was yes every time.

The following incorrect information was found on the internet:

“The largest gem quality stone is in the Smithsonian Museum and measures 1.5 by 3 inches. It was first described from Isle Royale, Lake Superior by C. T. Jackson and J. D. Whitney in 1847. Chlorastrolite, also known as greenstone, is the official state gem of Michigan.”

John found this Greenstone on Isle Royale back in the early 60’s, and it sat on a shelf for all those years. The above information was on Pinterest and is obviously incorrect . John’s Stone was the REAL world record. The finished stone easily covers a half-dollar with room to spare! It was 1.75 by 3.25 inches! It actually covered 2 silver dollars! The finished pendant is substantially larger, or course.

The Greenstone had previously been worked by someone unskilled in cutting Greenstone, so my challenge was increased by correcting someone else’s errors.

This was, and still is the most challenging and scary rock I’ve ever cut. It was especially scary, when I found out that I was working on one of the largest Gem-grade Greenstones ever found. Those that are skilled at cutting Chlorastrolite, know that there are numerous pitfalls that could happen. Holes and pits (which this was full of), cutting through the pattern, or not developing the pattern to its fullest (this also had taken place. So how do I proceed?)

I studied this Greenstone for several hours, and developed my plan of attack, based on my experience of cutting thousands of Greenstones. Mostly working slowly and carefully, using my intuition and hoping my choices were correct. I actually took three days on the cutting alone, and the results were fabulous. That stone had full pattern and was very hard.

I was finally able to produce both an amazing pendant and a set of large earrings from that monster.

Beth loved that piece of jewelry, and I was honored that John ask me to make it. I personalized the pendant, and she wore it often.

Her recent passing brought up one of many good memories of Beth. We’ll miss her and think of her often. I can see her wearing that stone as if it were yesterday.

Here’s another Pendant I made for Beth. She loved Bling!

A Quartz pocket containing pink and blue topaz–Beth loved Bling!

Greenstones are filling my Shop and House

Step 1 is finding the Greenstones of course. Past blogs have covered that subject. Step 2 is to tumble the stones and discard all the bad ones.

Overwhelmed with Greenstones

I’ve been trying to catch up on my Isle Royale Greenstone cutting. Isle Royale Greenstone (Chlorastrolite) is the Official State Gemstone of Michigan). This can get overwhelming. Unless you work with Greenstones, you have no idea what is involved, so let me walk you through the steps.

I never do fewer then 100 Greenstones. I flatten the backs and glue then to nailheads, screws, rivets, or whatever I have.

These Greenstones are awaiting the final three soft wheels, before final polish.

BIG BATCHES

I don’t cut Michigan Greenstones unless I am doing a big batch. Right now I’m working on 200, so I can produce a hundred new earring pairs. In order to find 200 good Greenstones involves going through at least 600 stones.

Add these earrings to my goal of 100 pendants, to be made over the winter, and you can see why I’m swamped.

There are Greenstones everywhere in various stages; on the table, in the shop, and in the kitchen. Fortunately Bonnie is patient and doesn’t carp much. We have not seen the top of the dining room table in a month, but it’s a necessary evil to getting these Greenstones fit for jewelry, or to sell to others for jewelry making.

Prepping Procedure

The procedure for prepping Greenstones involves tumbling the stones to take the Chlorite rind off. Tumbling destroys the weak stones, and brings out the pattern on the good ones. When they come out of the tumbler, I sort out the Greenstones with promise, and pitch the bad ones. The minimal grade Greenstones go into Grab Bags that we sell at our shows. The tumbling usually weeds out 2/3 of the stones.

Next I take the remaining stones and flatten the backs (the worst sides) to prepare for dopping. Most of these are small stones about half the size of a pea.

I glue the Greenstones to rivets or nail heads. Epoxy is faster for me, but you could use dop wax. The dopped stones are left overnight to dry. The stones are then taken to my shop and worked up on my Genie or Titan. This process can take some time to bring out the best in each stone. The stones go through all the soft wheels (Never use the hard wheels on GS). The hard wheels most often produce harmonic vibrations that can cause the stones to blow apart.

A before and after shot. You never know how fine a Greenstone is, until it’s finished. The bottom stone needs a little more work to remove some remaining flaws.

I Discard Many Substandard Stones

During this machine procedure I invariably discover some hollow stones. Other stones are not great or substandard. Again more are discarded.

Here’s a before and after shot of the same Greenstone. The second stone needs a little more work to get out remaining flaws.

At this point I must point out that Isle Royale Greenstones are one of the trickiest gemstones to cut. You must know exactly when to stop grinding at every stage. Some have very thin pattern layers, while others are good throughout the stone. You have to almost see, in your mind, if what you do will enhance the stone you are working on, or ruin it. You can only gain these answers through experience cutting loads of greenstones. I have cut many thousands in my day, so I have a “feel” for these beauties. There is never any answer that is always correct. Sadly, I admit to ruining many thousands of dollars worth of stones.

Taking my time is worth the effort

Taking the time to get it right, is the way I roll. These are calibrated ring stones for a jeweler customer.

Sometimes I am cutting a very fine Greenstone, that may be worth $500 or more, and that stone breaks through into a hollow area. I have sometimes cut right thru the pattern layer, thinking the pattern would get better. Stones have flown out of my hands and get broken or lost in the workshop Nexus. Recently Bonnie found one I remember losing long ago. She claims that is an advantage to cleaning up. I have learned from every mistake, and after making the same mistake several times, I often believe I have learned my lesson. Cutting Greenstones is not cheap. “OOPS, there went another hundred bucks”..

Bonnie’s New Pendant…NOT!

I had this sitting on the table. I told Bonnie it was laid out for a new pendant for her. NOT!

The stones get soaked in a solvent to get them off the dops after they are polished. This takes several hours, then I go through a quality control with the entire batch, and weed again (Do you see a pattern here?). Greenstones are an amazing amount of trouble and work, and being that they are generally small, makes it harder, not easier. No one should ever complaint about the price of a Greenstone. A really good one is so rare.

I am going to start making Greenstone beads in the near future; I’ll admit this is a bit over the top, but I just have to try it.

A pair of perfect Greenstone Cabochons.

Custom Greenstone Cutting

If you have a Greenstone that you want me to work on for you, there is a procedure. First I need clean pictures with something (like a dime) in the picture (preferably several pictures). Many people that have what they think is a Greenstone, have something else. Next, if we agree there is a good possibility of success, you send the stone for evaluation. This allows me to see if your stone is viable for cutting and polishing. Thirdly, I honestly tell you what I think.

If you OK with everything, I cut and polish ,with no guarantee of success. My odds of producing a good gem are around 90%. If you provide a good stone, you’ll get a good result. I can never assure anyone that there are no internal flaws, cracks, or voids in the stone. I wish I had Xray vision, but I do not. I address any customer stone as if it were my own.

Once we reach the cutting and polishing stage, my odds are around 90%. If the stone is flawed, you would not have wanted it anyway. Thus far, I have been close to perfect on customer’s custom cutting.

I know this blog has not been my norm, but I think being buried in Greenstones has somewhat effected my head. I’ve wanted to explain what it takes to get you a good piece of Greenstone Jewelry, so now you know some of it. Visit our Greenstone Cabochon pages for cut stones you can use in your own jewelry, or see our Greenstone Pendant pages and Greenstone Earring page for currently available jewelry. Oh; we have Tie Tacks also! Does anyone still wear them? (Or they can be ordered as pins.) Enjoy Michigan’s State Gem, a rare and special stone found nowhere else on earth.

Read more about Greenstones or about The Shades and Patterns of Greenstone or a Greenstone Hunt in the Rain.

Greenstones on the Bench-Awesome Isle Royale Greenstone

If you have followed my blogs over the years, you should have noticed many are about Isle Royale Greestones. I am amazed by orders from all over the country for cabochons, pendants, and earrings. How do these people know about these rare, one-source gemstones?

Many people have visited Isle Royale National Park, and know these stones can be found on the Island, but park regulations do not allow collecting Greenstone, as well as other specifically listed rocks and minerals. Having said this, the National Park Service policies have changed over the years in regards to picking up Greenstone. Isle Royale Greenstone have actually been protected since isle Royale National Park was estabished in April of 1940. There are individuals, even today, that harvest a few Greenstones while visiting Isle Royale. I guess my personal feeling is neutral on this subject, but they could pay a price if caught.

The Park service looked the other way, back in the day, when visitors picked up a few Greenstones on the beaches. Tiny little Greenstone, although fairly tough, were eventually ground up by the mighty Lake Superior, so why not let a few go home as mementos. The problem came with commercial Greenstone expeditions, where thousands of Greenstone were harvested by divers or “professional pickers”, and sold on the mainland for massive profit. The park service cracked down on these greedy private business collectors, and began enforcing the collecting rules that were always on the books. Today, there is a strict and enforced policy against removal of certain Gemstones and Copper from Isle Royale.

Over the years, I often have conversations with customers about old rock collections from decades ago. The collections are sometimes discovered by heirs in basements, garages, or sheds. My ears perk up at the sound of “grandpa’s old rocks”. Last year I bought an old Greenstone collection that was stored in a barn for fifty years, the rockhound that collected them was remembered by the jewelry he made, but some stones remained.

I am an obcessed person when it comes to cutting and polishing Greenstone. I try to limit myself to 100-150 of them for marathon cutting and polishing (I can oly average 4 Greenstones an hour). I’ll select the beach tumbled stones from my stash, throw them in my redneck bowl (CoolWhip), and take them to my shop to flatten the backs for Dopping. FYI; the rough Copper-Greenstone, featured in the opening blog photo, is at 12 O’clock in the bowl. I thought it was just a Thomsonite-included stone. There was no indication it had Copper in it until it was cut (with me smiling).

After the backs are flattened, I push them, flat side up, into that crispy Styrofoam used for making wreaths. Sometimes I get lucky, and am able to get broken scraps.

Finishing Isle Royale Greenstones

Whenever the urge presents itself, or my inventory depletes, I decide to have a Greenstone production week. Production usually involves sorting out stones for both pendants and earrings. Earrings are generally sorted for color, size, and quality AFTER the Stones have been dopped, cut and polished, and removed from the dopsticks.

Depending on the size, pendant stones may or may not need to be dopped. Dopping involves gluing or hot waxing a stone to a wooden stick, a nail or a screw, to allow safe cutting without the skin touching the diamond imbedded wheels of the Lapidary Machine. Some bleeding is often present even though the stones are Dopped. I tell Bonnie, that a little blood on the stone improves the polish (NOT). I do heal fast. Some of my cutting and polishing of Greenstone methods I keep under wraps, but standard methods work well for most. I may continue, starting with how I remove the stones from the Dopsticks, and proceed from there.

A tiny Greenstone, from the Jeremy Graham collection, I recently wire wrapped for him. An unusual yellowish-green Island stone with Thomsonite inclusions.. Many times good things come in small packages.

Greenstone Quality

Island Stones are usually superior to Keweenaw stones in all respects. They generally harder and the pattern goes completely through the stone. The pattern most often, is a finer pattern, and often the color is a pale sage green. Because of the hardness of the Island material, Isle Royale Greenstone take a super deluxe polish. You can read more about the colors and inclusions in Greenstone in the Snob Blog article, The Shades and Patterns of Greenstone (Chlorastrolite).

Island Stones make wonderful stud earrings due to the fine pattern that is usually present. Isle Royale stones cost a little more money, but are lovely.

Another phenomena of Island stones is their color variations; some are so unusual you can have doubts that they are actually Chlorastrolite.

We invite you to have a closer look at our Greenstone–check out our wide selection of cabochons, pendants, and earrings.

Swing into 2019 with Great Lakes Stone Jewelry

“Greenstone, Copper Agates, Lake Superior Agates, Datolites, and Pink and normal Petoskey Stone Jewelry continued to be popular in 2018; and we expect this trend to continue. Our loyal customers understand how rare these Gemstones are becoming, and eagerly order them as impressive and historic pieces of jewelry from the Great Lakes Region. Many are buying these rare Gemstones as investments and treasured heirlooms. Great Lakes jewelry makes unique and highly appreciated gifts.Thanks to all of you that bought handmade in the USA, Great Lakes jewelry treasures, in 2018.

Christmas is past, but many of you are now wearing our jewelry. Thank you so much.

Bonnie’s Christmas Pendant: Top to Bottom; Lake Superior Agate, Yellow Keweenaw Point Datolite with Copper, Greenstone with Thomsonite from Isle Royale (Collected at least 50 years ago).

What does the jewelry makers wife get for Christmas? The trick is to make her something special (and make it in a stealth mode). I think I pulled a good one off.

I picked out three special stones; cabbed them, and made a beautiful Lake Superior Area Showpiece. The top stone is a wonderful, flawless Laker. Stone two is an ultra rare Keweenaw Point Yellow Datolite with Copper. The third Stone a very finely colored Isle Royale Greenstone that I retrieved from my very old collection of Isle Royale Stones. All these stones swing freely and separately from each other.

Bonnie: “You’ve got wires going everywhere!!” Me: “Don’t worry, I’ve done this before.”

I took care of all those errant wires; (see above picture) which proved me worthy.

Very unusual pattern and coloration from the Central Exploration Mine. Enhanced with a nice pair of Greenstone beads. 2.8 Gram Greenstone about Quarter-sized large Greenstone.

A double Greenstone pendant with a free-swinging bottom. Phoenix Mine.

I’ve decided to up my game in 2019 by making some exceptionally notable pendants. Thanks all, and a very Happy New Year to you all.

Visit our best-selling Great Lakes Stone jewelry pages: Lake Superior Agate Pendants, Petoskey Stone Pendants, Thomsonite Pendants, Michigan Greenstone Jewelry, Mohawkite Pendants, Datolite Pendants, Firebrick Pendants, Prehnite Pendants, Copper Replacement Agate Pendants. Also we have beaded earrings: Jasperlite, Leland Blue Stone, and Lake superior Agate and Kona Dolomite. We also have Unakite, Binghamite, Kona Dolomite pendants in our show inventory. What’s your favorite Great Lakes jewelry stone? Chat with us on Facebook, or send us a message!

Isle Royale Greenstone Jewelry Bonanza

I use whatever I have to make dop sticks, screws, nails, etc. I had perhaps 100 Greenstones dopped in this bunch, ready to be cut and polished.

A Big, Bold, Greenstone about Quarter sized. Greenstone of this size are becoming extremely scarce. Many of the mine waste piles, where Greenstones were once found, have been crushed and hauled away for road fill.

Sometimes I wonder why certain things randomly happen. Why would someone decide they were going to sell grandpa’s rock collection, and pick me over the many thousands of rockhounds or jewelry makers?

A beautiful small Isle Royale Greenstone.

A non-island stone (this one from Central X)

On occasion I purchase Greenstones from other collectors. This is our Michigan State Gem, and collecting it is a challenge.The problem with Isle Royale Greenstone is that collection in the National Park is now illegal. My policy is to only purchase stones with provenance documenting that they were collected many years ago. These stones can only be found in old collections. The opportunity to purchase these historic stones presents itself on very rare occasions. A couple Greenstone collections have been acquired recently. Some from old mine waste piles and some from a very old Isle Royale collection.

Participating in Keweenaw peninsula Arts & Crafts shows allows us to meet many people. It is not uncommon when we are selling our Isle Royale Greenstone jewelry at arts & crafts shows for some random person to mention that Grandpa used to collect rocks and/or make jewelry. My response to these statements is always to query what happened to all of Grandpa’s rocks? Responses vary, but the ones I like are a derivative of Oh they are in my garage, basement, collecting dust, or some other relative has them. Most often we hear that they are lost or were sold off many years ago.

At a recent Art Show I returned to our booth and Bonnie was taking to a lady. Bonnie has a much more friendly face than I, and people seem to connect with her. I overheard the word Greenstone, but we generally do not interrupt conversations. An old Greenstone collection had been in storage for over 20 years! A worker on the island had spent free time walking the beaches and trails and collecting. This treasure we certainly were interested in looking at. The question of why people might chose us over someone else, to sell an old collection to, is obviously the awesome Bonnie’s friendly disposition and “good looks”; This statement should score me some points….

A couple days later I excitedly watched as an old wooden box was opened up to expose ten pounds of wonderful, but small, Isle Royale Greenstones! How long would it take me to find so many Greenstones in this day and age? It just can’t be done.

After a few days these Greenstones ended up changing hands. Bonnie thought I was crazy, but knew I was happy to have new stones to sort, dop, cut, polish, and wire wrap into Isle Royale Greenstone jewelry.

On the Keweenaw Peninsula, mine waste piles are being crushed and used for road fill; accelerated, recently, due to the storm damage to roads in the some areas. Historic Greenstone sources are gone forever. How long would it take you to dig ten pounds of Keweenaw Greenstones? Where could you even locate this many Island Stones? I have found many Greenstones in the past, but it is not like the old days folks.

Beautifully patterned Island Stone.

A Thomsonite-flowered Greenstone from Isle Royale.

Some prefer a smaller pattern. This chatoyant beauty is from Isle Royale.

A very cool bubbly Island Greenstone desert with a whipped Zeolite topping.

An amazing light Green, broad patterned, Island stone is small, but very worthy.

I have been happily cutting this hoard; the shop machine have been humming, and I have been smiling. These beautiful Greenstones were actually within a few miles of us every time we went to the Keweenaw, but just like magic, they eventually migrated to me. I think it was Kharma, or it could have been just plain luck resulting in Isle Royale Greenstone jewelry!

During November and December, many of these spectacular stones will appear in some new jewelry and sold on our website in the Greenstone area. If you need a perfect Greenstone, like what you see in this blog, get ahold of us. Christmas is not that far away when it comes to getting custom jewelry made. If you hope to get a ring, buy a stone from us and take it to your jeweler (or make something yourself). I guarantee this new trove is producing the very finest Isle Royale Greenstones available. I have cut thousands of Greenstones, and these new (old) gemstones are great quality stones.

We have been frantically trying to post up as many new Greenstone pendants as we can for Holiday Season sales. Most of the stones in this post can be found on our website.

See our pendants and cabs at Greenstone jewelry and cabochons

Read our history of the Michigan State Greenstone gem

Read interesting Isle Royale information

Visit the official Isle Royale NPS website

Chlorastrolite or Michigan Greenstone–State Gemstone

Piles of mine waste rocks used to abound in the Keweenaw. Not so much anymore. There’s a lot of Greenstone here, but where are they?

Let’s look at some interesting tidbits about Michigan Greenstone, the state gem.

After lobbying by the Michigan lapidary community, Isle Royale Greenstone (Chlorastrolite) became Michigans Official State Gemstone on February 21, 1972. Gov. William G. Milliken signed a bill that had rapidly sped through the legislature with overwhelming majorities.

Reportedly the lawmakers had some smart remarks to make before they were finished. One Senator from Kalamazoo (Anthony Stamm), said It looks like stuff I put on my driveway at $40 a load. Another legislator wanted to know if Chlorastrolite was any relation to the stuff that clogs arteries.Another lawmaker explained If you think my wife is going to trade in her Diamond for a Greenstone, you have rocks in your head.

A beautiful Isle Royale Greenstone.

Chemically Chlorastrolite is Hydrous Calcium Aluminum Silicate. It commonly has a polygonal mosaic pattern sometimes referred to as an alligator pattern. It can be light or dark green, but the pattern is much showier in lighter shades. Lighter green predominates Greenstones from Isle Royale, while many Keweenaw Greenstones are darker. A desirable Greenstone trait shows radiating lines exhibiting Chatoyancy like Tiger-eye.

A solid Greenstone has a hardness of 5.5 to 6.

Tumbled Greenstones ready for sorting. Most of these are good for jewelry.

Chlorastrolite is formed in vesicles (small holes in bubbly Botryoidal lava) in the upper strata of the lava flows. In many cases in the Keweenaw, the vesicles do not completely fill, and you get hollow nodules. Imagine cutting a large Greenstone, thinking how big and splendid and special it is, plus how much money it might be worth, and all of a sudden, you bust through to a hollow center. Everyone that cuts quantities of Greenstone has done this. It’s very frustrating indeed. I will leave out the expletives uttered when this happens.

On the other hand, sometimes a hollow core may have been later filled with another precious mineral found in this area–Thomsonite, Prehnite, Datolite, or even Copper. These elicit a WHOOP! sound from me. I have even seen hollow Greenstone with copper crystals inside. (For more on my favorite Greenstones with inclusions read The Shades and Patterns of Greenstone (Chlorastrolite) May 1, 2016

Sometimes I just take the entire Greenstone and matrix and pop the Greenstone out as needed.

A Greenstone found underwater off Isle Royale in1961 by Arthur Vierthaler is in the Smithsonian and is claimed to be the largest Greenstone ever found at one and a half inch by three inches. I have seen many larger, and have personally cut a two inch by four inch one myself.

Shall we go way back in time? In the 1890s to the 1900s Isle Royale Greenstones started to appear in New York City. Socialites assumed they were of French origin because of the name. These ladies were somewhat lacking in geographical knowledge, and although there was minor interest in stones from romantic France, when it was found they were from a remote Island in Lake Superior, interest waned. Michigan Greenstones were relegated to the curio category and only had a passing interest.

Greenstones from Isle Royale. Collected 50 years ago.

Greenstones had more recognition in the Midwest where they could be purchased at Wisconsin and Northern Michigan barbershops and saloons. Today, Greenstone dealers still do not get the customers for Greenstones that they warrant. Because Michigan Greenstones come from such a limited area of the world, few people have ever seen one. They are basically a one source gemstone and that source is the Isle Royale National Park, (where they’re illegal to remove), or in the Keweenaw Peninsula, where they’re becoming more scarce because of all the Private property and all the old dump piles having been crushed and hauled away for road fill.

Michigan Greenstones may resemble several other vesicle-filled stones that are found in these areas. These nodules can be Chlorite balls, Chlorite covered shot copper, Copper agates, Greenstones, or other things. We may find what we call Greenstone Wanna-Bes. On the outside these appear as if they may be Greenstones, but when we grind them, they become green dust or mud. They just didn’t get fully baked by the geologic forces I guess!

Over the years I have accumulated not only vast amounts of Rocks, Minerals, and Fossils, but occasionally when I purchase an old collections from an Estate or garage sale, I also see old rock books or, if I am lucky, some notes or historic data on rocks and minerals.

Years ago I visited an estate sale of a well known Geologist/rockhound and discovered a couple boxes of documents, maps, notes, articles, and books no longer in print. To me, these are just as valuable as any rocks I might find. These papers and books contained secret locations, historical data, and many, many other valuable resources. I cannot explain you how excited I was to find these boxes; even more excited then finding that bonus fry or three on the bottom of the McDonalds bag.

I started to dig through these boxes and other archival resources and see what tidbits I could find on Chlorastrolite (AKA Greenstone). I know I have written about Michigans State Gemstone many times, but I am always looking to find something new from the old articles. Much of the information in this blog is from my treasure trove of old resources.

The Chlorastrolite Now Michigans Official Gem by E.W. Courter Lapidary Journal November 1974

Footnote on Chlorastrolites by Lee Carter Lapidary Journal October 1969

Other information delved from papers of the late Don H. Clarke

At Snob Appeal Jewelry we sell high-quality, hand-crafted, wire-wrapped stone jewelry specializing in stones from the Great Lakes Area. You can see our Michigan Greenstone cabochons and jewelry, Lake Superior Agate jewelry and other Keweenaw stones, Petoskey Stone jewelry,and stone and agate jewelry from around the world.