Michigan's State Gem Chlorastrolite or Greenstone has a green silky chatoyancy, an alligator-like or turtleback-like pattern, sometimes with inclusions of other minerals such as Thomsonite, Datolite, or Prehnite. Formed in vesicles of volcanic basalt, Greenstones are often small, as in half the size of a pea! The stones we use for jewelry usua...
Michigan's State Gem Chlorastrolite or Greenstone has a green silky chatoyancy, an alligator-like or turtleback-like pattern, sometimes with inclusions of other minerals such as Thomsonite, Datolite, or Prehnite. Formed in vesicles of volcanic basalt, Greenstones are often small, as in half the size of a pea! The stones we use for jewelry usually started much larger, and have been ground down in search of the best display of pattern and shine, before they are beautifully wire-wrapped into jewelry for you using the best precious metals available. Greenstones have become quite scarce because old mine rock piles are being crushed and used for gravel. When you buy a Greenstone pendant, you are investing in jewelry of a rare gemstone.
Subcategories
Michigan Greenstone (chlorastrolite) is a gemstone found in the Keweenaw Peninsula and on the Isle Royale National Park islands. The official state gemstone of Michigan, it is normally small and well-suited for bead earrings. The turtle-back or alligator skin patterns of green are characteristics looked for. Sometimes other minerals can also be found in the greenstone, such as thomsonite. Our earrings are constructed with 14/20 gold-fill and sterling silver.
Chlorastrolite was declared Michigan's State Gem, but it is only found in a small portion of the state, the far north. It comes from Isle Royale (now a National Park where collecting is prohibited) and from certain copper areas of the Keweenaw Peninsula which juts out into Lake Superior. Created by volcanic action the host rock is mineral rich and was first valued for the copper found there. While finding copper, miners also found these small nodules of green, and sometimes they would polish into gemstone beauties. These are the treasures we crave, starry, well-patterned with geometric, chatoyant variations of dark and light green, and sometimes some pink Thomsonite or other inclusions. Greenstones have become quite scarce because old mine rock piles are being crushed and used for gravel. When you buy a Greenstone, you are investing in a rare gemstone. Our stones are well polished and ready for use in rings or other jewelry.
Greenstone tie tacks for the distinguished man who needs a distinctive gem for his ties! Michigan Greenstone will bring great pleasure to wear (compared to other tie tacks)!
Here’s a very nice Isle Royale Greenstone, with Thomsonite dotted across the surface. Round, cute, beautifully patterned, and nicely domed, this would be a perfect ring stone. .7 grams 9mm round, dome 6mm
An Isle Royale Greenstone with lots of lovely pink Thomsonite.
A tall slim Isle Royale greenstone is wrapped in lovely gold wire.
Did this surprising Greenstone catch your eye? A cave of bubbles of Greenstone are rounded and topped off with dollops of pink frothy-looking Thomsonite. No other stone quite like this little cutie! Buy and enjoy!
A high-dome shows off nice chatoyant Greenstone pattern on this petite gold-wrapped pendant.
Cute as a button, this is a small Isle Royale stone with a dark shiny pattern and pink and yellow gold wire wraps.
You'll love this big Greenstone with gemmy pale green Prehnite streaming through it, artfully wrapped in gold and Argentium wires.
What shouts “Copper Country” better than Greenstone and Copper Agates? They make a Superior combination! This pendant stars a perfect perfectly patterned Isle Royale Greenstone combined with an amazing copper agate from the Kearsarge Lode near Calumet, Michigan. These are premium gems from Isle Royale and the Keweenaw Peninsula. Don't miss out on this...
Looking for a noteworthy Michigan Greenstone pendant? You will love this round dark-patterned Greenstone with dainty twisted and sqare Argentium wires.
A dark starry pattern covers this Isle Royale greenstone wrapped in Argentium wire.
This unusual Dreamy Greenstone has two enhancements of Datolite. The stone is wrapped in Argentium and gold, making a lovely Copper Country momento.
Here is a darling of a Michigan greenstone, large and glorious, wire wrapped in square and twisted gold fill wires! Go for the bling, this will bring delight for as long as you have it!
Delicately wrapped in 24 gauge yellow gold and pink gold, this Isle Royale Greenstone will be a delight to own and a delight to wear. This pendant has a lot of appeal, a great price, a great treasure from a remote National Park. Buy and enjoy!
A pink and green chlorastrolite Greenstone is daintily sire wrapped with argentium and pink gold wires.
A chatoyant Chlorastrolite Greenstone shows a great pattern, small speckles on the bottom and larger on the top. A nice size, very simple wire setting, a good size, and well priced.
Pink spots of Thomsonite on this pretty Isle Royale Greenstone highlight leafy chatoyant Chlorastrolite patches. The pendant is wire wrapped in delicate 14/20 gold wires. Buy this distinctive beauty for your Isle Royale lover.
An extremely classy and rare double stone pendant of Phoenix Greenstone and Keweenaw Silver nugget! A beauty to behold, wire wrapped in delicate 14/20 gold fill, and the silver nugget is in argentium silver, bound with gold fill. Buy and enjoy!
Wow, look how big this is! With a nice sheen, it is slimly cut, and covers a large surface area with Michigan Greenstone pattern. Make this a star of your piece! 2 grams 19mm x 16mm x 3mm
A chatoyant Isle Royale with small bits of Thomsonite around the edges--what a find! This is symmetrical and set horizontally which is always a popular combination. If you like this little Marvel, Buy now!
An Isle Royale Greenstone textured with Thomsonite is richly wire wrapped in gold wires and is beautiful to behold. This jewelry is pink and green heaven on earth!
Looking for an extra special Keweenaw gem beauty? This is a one-of-a-kind piece, we don't have anything else like it! This is a real state-of-art Keweenaw Gemstone beauty for the discriminating stone lover.
Thomsonite enhance with Isle Royale Greenstones, here is a visual treat for the stone lover! The three Island Greenstones are speckled with characteristic pink inclusions, complimenting the featured pink North Shore Thomsonite stone. Your rock loving soul will love this Island to Shore stone pendant!
A pale green Isle Royale greenstone delicately wire wrapped in gold and pink gold wires.
A petite Isle Royale greenstone pendant, with a corner of calcite, delicately wire wrapped in gold wires.