Tag Archives: chlorastrolite

Amazing Cats Eye Jade and Stunning Greenstone with Thomsonite

I had a dream last night. I often dream of rocks I covet, but on rare occasions I have dreams of jewelry I must make. I woke right up at 4 am and pulled the rocks out so I would not forget that which my brain had imagined.

What will Don do with these?

I was looking at a piece of Cats Eye Nephrite Jade that I had bought in Tucson. I had never seen this material from Siberia, but I had heard of it. The lovely green looks like that optical glass that marbles are made of and has a “cats eye” effect similar to Tiger Eye. I bought this one piece because it was so intriguing, and there were no others like it.

My dream brought this Jade together with a wonderful piece of Moonstone that had another phenomenon called Labradorescence. I also invisioned Pink Topaz in the picture. I laid out the stones on my workbench and when I awoke went right to work.

These multi-stone pendants are a real challenge and take a great deal of time and deep concentration level. Success! A wonderful pendant was produced, just as in my “Nice Dream”.

Cats Eye Jade, Moonstone, and Pink Topaz in Argentium Sterling.

Also today, off the workbench, came one of the most amazing and stunning Greenstones I’ve ever made. I cut it a few weeks ago and could not believe what I was seeing. As I ground the stone the most beautiful Thomsonite unexpectedly broke out of the center of the Greenstone! I never have seen more gemmy Thomsonite in any Greenstone, nor have I seen such a large quantity of georgeous pink Thomsonite in one Greenstone–“Unexpected Romance”.

Greenstone with a Thomsonite Inclusion. WOW!

This especially large (4.5 gram) stone is so amazing I have to show you the picture. Yes, it is for sale until gone–one only! Some stones are so stunning they cannot be described.

Firebrick & Greenstone Pendant

I have a most creative customer (Nelson) who is always thinking outside the box when it comes to jewelry design. His latest concept was a Upper Peninsula representative pendant with an Isle Royale Greenstone placed approximately where Isle Royale is located. Nelson was given the honor of naming this pendant which he called “Yooperland”, so for here on out they will be Yooperland Pendants.

After some thought Nelson decided on a U.P. cut from firebrick. Firebrick has been talked about in my blog before but let’s review: When the copper smelters were build in copper country, they were made of brick. Over the years as copper was smelted, the copper vapors and solids permeated into the brick and replaced everything except the silica materials. After the mines were closed the ovens and stacks were either taken down or fell down. Enterprising individuals then took away some of this heavy material and used it in lapidary projects. Today fire brick is quite scarce, but there are still stashes around. Since firebrick has such a great story of the Copper Country, it makes wonderful conversational jewelry.

This "yooper special" is a wonderful design.

This "Yooperland" is a wonderful design.

I usually coat my firebrick jewelry with a two-part epoxy resin to prevent it from tarnishing. This will keep the “Yooper land” pendant shining with a coppery look.

I used a 30X40mm Blue Lace Agate cabochon as the base for this project. After cutting out the firebrick and prepping it, I polished a wonderful Greenstone. Both of those stones were glued to the Blue lace so it appears as if everything is floating in Lake Superior.

The wire wrapping in gold and silver is quite elegant as befitting Nelson’s Queen. I added additional height to the perimeter to protect the firebrick and the greenstone. I expect Nelson’s wife will have a wonderful birthday gift. She loves U.P. themed jewelry.

I expect to make several more of these before spring. I believe these pendants will be one of our most popular, especially for our U.P. shows.

Nelson wrote me after giving his wife her Yooperland: The YOOPER LAND pendant is OUTSTANDING! I gave it to my wife for her birthday and she loves it. However there is a small issue that I must deal with when we go out in public. Nearly everyone comments on her necklace- BUT the rest of the people just stare. Sometimes I get a little jealous . MAYBE the solution would be a turtle neck shirt!

By the way my wife says “THANKS”

Michigan Greenstones-on the Workbench

I had a knee replaced a couple weeks ago. This has given me substantial blocks of time that I am using to make jewelry. This jewelry is comprised of pieces that have been on my to-do list, but up till this time I have not had the time to get it done. The pain medication I’ve been taking has caused drowsiness at some unexpected times, and at other times keeps me wide awake in the middle of the night. I have found that I can be quite productive when it is very quiet in the house and I am in complete focus. I have made a few really complicated pendants that I just have not had the time to do previously. Also I thought I would catch up on some really fine small greenstone pendants. These are from very nice Michigan Greenstones (chlorastrolite) and do not exceed one inch in height. Anyone that has wire wrapped can testify that smaller pendants and earrings are not easy to make. They take more care and finesse than regular sized pendants. The 24 gauge wire I use to make these pendants is delicate, easily scratched and gouged, and requires a skilled and steady hand. However, the resulting greenstone pendants are very popular.

Small and awesome greenstones have been on the workbench for the past few days.

My petite greenstone cabochons do not require complicated wire wrapping. It does not take much to overwhelm a small greenstone, so I keep it simple. I like to creatively name my creations–what do you think of them?

This is from an old collection and was found on Isle Royale years ago.

"Small Wonder" is from an old collection and was found on Isle Royale years ago.

"Concealed Silk"-a perfect petite Greenstone.

"Beautiful Mystery is REALLY nice," says Bonnie.

TThis is a very rare Isle Royale Greenstone with pink Thomsonite inclusions

"Cool Factor" is a very rare Isle Royale Greenstone with pink Thomsonite inclusions. Suberb!

Green Mist--What great chatoyancy!

On the Workbench (August 31, 2011)

My 100th Blog!

Bonnie had a great idea last week that I think will be great fun. She suggested that I show you what is on my workbench. I will show you what I am doing both before making jewelry and after my jewelry is finished.

a 3+ gram Isle Royale greenstone

My first post is a very nice fine-patterned Isle Royale Greenstone that I acquired in Michigan’s U.P. This was a rough nugget that I cut in half. I offer many greenstone cabuchons for sale on my website which folks use to create their own rings and other jewelry. A large stone with a great pattern like this I make into my own wire-wrapped creations.

Here I am making this pendant on the beach at Crystal Lake near Benzonia

Here I am making this gorgeous pendant on the beach at Crystal Lake near Benzonia

I cut it in a designer shape and wrapped it in 14/20 gold fill and Argentium Sterling. I was very pleased with the finished product. You can see this Greenstone pendant on my website along with other chlorastrolite pendants.

A gorgeous Greenstone with included Thomsonite. A winner for sure!

A Luminous Superstar Greenstone with included Thomsonite. A winner for sure!

Picture Frame Pendant

I have come to the realization that I have not talked about any of my new designs in quite a while. My latest picture frame pendant has become my recent favorite, and I think these will become a popular items this year.

My interest has not always been in jewelry making and the lapidary arts. I started out in visual arts, especially water color. When you paint a picture, it always looks better in a nicely matching frame, so I thought why not stones? This got me thinking of all my wife’s beads and especially beads made from Michigan rocks and minerals. Between the rocky Great Lakes shorelines, stony gifts from the glaciers, and mineral finds in the Upper Peninsula, Michigan has a real variety of stone to choose from. Many of our Michigan stones are miracles, found here and really nowhere else on earth. What if I could frame these beads in a collage featuring a variety of the most popular of these Michigan stones, making a picture of Michigan Miracles, or Lake Superior Miracles?

I started playing around last year with sizes and designs for my window boxes and this winter decided that the most pleasing shape and size may be a rectangular box of around 20X30mm. Stones can be arranged in pleasing and artistic ways within these confines. Thicknesses of the frames can also be manipulated to protect the beads therein. I have made a couple of much larger frames also that some people enjoy. Larger, or more stones can be used in these larger frames.

The featured stone in a Michigan pendant could be expected to be our Michigan greenstone (chlorastrolite) which is found in small areas of the Keweenaw Peninsula or on Isle Royale. We had some very nice Isle Royale Greenstone beads that were drilled incorrectly. These beads were drilled so when they are strung, you can only see the sides of the beads and not the widest and best part of the greenstone. By using a prong-set on these beads I was able to turn the best faces to the front of the pendants, giving folks a very large size greenstone for a reasonable price. The cost of these gemstones alone is worth our low pendant price. p4080180

I think it is important that the best possible beads be used. If I’m going to make a little piece of art, I want to use the best media (stones), that are available. I am selecting from a nice variety of Michigan miracles: greenstone, Petoskey stone, datolite, jasperlite, thomsonite, firebrick, kona dolomite, epidote, favosite, hematite, prehnite, copper/silver half breeds, and Lake Superior agate.

Wire wrappers should be warned that these pendants take me three times the time that I commonly spend on a pendant! I also think that it helps to have some training in balance, layout, and color and an artistic eye to make these little treasures.

We have posted a couple of these little Miracle treasures on out website, and hope you will experience the same enjoyment wearing and showing these pendants as I do making them.

A Most Wonderful Greenstone Hunt

The location of this hunt will remain a secret other then to tell you it took place somewhere in the Keweenaw Peninsula. This took place in September 2009.

Sometimes I think we rockhounds are a little crazy to go out and bang on rocks in the hot sun and call it “fun”. I think this is what convicts in chain gangs used to do. I bet it wasn’t fun for them! Other times we are out in a downpour because this is the best time to spot the type of rock we look for.

Let me tell you about one of those trips to an old rock pile in the U.P. when it was pouring rain. Bonnie and I donned our heaviest rain gear and waterproof boots and headed to one of the old mine dumps where we had previously enjoyed some success finding Isle Royale Greenstone. Immediately we found greenstones literally “washing out” of the banks in one small area on the pile. This is when you suffer bouts of greed, amazement, and wonder.

We harvested these stones as well as finding numerous other rocks full of Greenstone that we will remove later at home by cutting or breaking the matrix. Greenstones, when found, are generally small, ugly, dark green nodules. Often I see a glint of chatoyancy in the nodule, or the nodule may be broken and you can see the pattern where the break is.

Many of the greenstones we were finding that day were over one inch and we could see good chatoyancy in the nodule. This is remarkable size considering the average greenstone is maybe half the size of a pea. Over the course of four or five hours we picked up a gallon size ice cream bucket of loose nodules and larger nodules in matrix, and another five gallon bucket of greenstone bearing basalt. Greenstones are very rare and are found nowhere else on earth except Isle Royale and in the Keweenaw. Picking up this many in one day is remarkable. In one day Bonnie and I found more greenstone than the total amount we have picked up all the previous years we have been hunting.

I expect we will never have another greenstone hunt like this. It amounted to being at the right place, in the right location, at the right time. Few hunts work out this good. Dealing with the elements and not caring; finding valuable gemstones like they were common quartz; collecting not only treasures but memories. How great this was. I wish you could have been there.

Some of these new stones will be for sale on this website in the near future.

Isle Royale Greenstone/Chlorastrolite (AKA Michigan Greenstone, Greenstone, Pumpellylite)

Michigan’s State Gem, the Isle Royale Greenstone, Greenstone Pendant with Datolite is unquestionably one of the rare minerals of earth. It can only be found on Isle Royale National Park and in Michigan’s Keweenaw Peninsula. Greenstone is a close relative of Epidote. Chlorastrolite (translated from Greek as green, star-like stone) is actually a form of Pumpellyite. “Chlorastrolite” was adopted as Michigan’s gem March 30, 1973.

Greenstone formed in amygdaloidal pockets of Keweenaw basalts. At one time Isle Royale and the Keweenaw formed one land mass. Isle Royale was spit off from the Keweenaw when the rift that formed Lake Superior split a giant gash in the earth.

Thanks to Benjamin Franklin, the Keweenaw Peninsula and Isle Royale are part of the United States. Franklin was a member of the commission that drew up the boundaries for the Treaty of Paris in 1773, ending the Revolutionary War. Ben Franklin had heard of the rich mineral deposits in the Keweenaw and Isle Royale so he drew the boundary line to the north of Isle Royale, giving this area to the United States instead of Canada.

The mineralization on Isle Royale is exactly the same as the Keweenaw. Native copper, Datolite, Prehnite, Thomsonite, Lake Superior Agates, Epidote, Greenstones, and the same basalts are seen in both locations.

Basalt 101-

As the basalts cooled, gasses tried to escape to the surface, the bubbles becoming smaller and smaller as they rose and tried to escape from the basalt’s clutches. The basalt hardened and trapped these bubbles known as “vesicles”. Also the cooling created shrinking and cracking of the basalt. These cracks in the basalts allowed different minerals in solution to flow into the vesicles, where they eventually solidified.

Copper, silver, arsenates, and other metals also filled the cracks and vesicles, but were disseminated by rising, super heated water instead of flowing down from the surface. The vesicles that the copper and other metals filled were sometimes huge and other times just cracks or small bubbles.

Greenstone with Datolite and Copper

Greenstone with Prehnite

Copper associated itself with other minerals including all the previously mentioned material. The variety of material, mixed in different ways, is what makes this rock hunting area so intriguing. It is wonderful to see copper running through Greenstone, Datolite, Prehnite, and Lake Superior agates. Pieces of Greenstone/copper are highly coveted by collectors and jewelry makers like myself. The few pieces I have are priceless. My wife has a ring made out of one of these copper/greenstone pieces, and I still have a couple specimen pieces. She sometimes wears the ring to art shows, so ask her if you see us. To see an example of copper with datolite, take a look at my Copper Lightning Datolite.

Greenstone with Thomsonite

Greenstone sometimes has Thomsonite inclusions, which make for a spectacular look. (Dark, chatoyant green and dark pink together) I’m waiting to find a Copper-Greenstone-Thomsonite some day. I have seen specimens of these at the Seaman Museum at Michigan Tech.

My next post will discuss finding and working with greenstones.