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Greenstone Cabochon 2 grams
Gs778
New
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
1 Item
Unique Item
More info
A large Greenstone is a good find. This one has a nice pattern and is spread out to make a big statement in you jewelry setting. Get it and go creative!
The Michigan State Gem is commonly called "Greenstone", "Michigan Greenstone" or "Isle Royal Greenstone". The correct mineral name is Chlorastrolite, a variety of pumpellyite. Chlorastrolite is found as small pebbles on the beaches of Isle Royale in Lake Superior and also throughout the Keweenaw Peninsula. Greenstone is associated with the native copper deposits of Northern Michigan. The Michigan Greenstones are found as green/black nodules in vesicles of the amygdaloidal basalts. Most greenstones are smaller than a pea, and really large ones are extremely rare.
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