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Greenstone Cabochon 1 gram with Thomsonite
GS310
New
An Isle Royale chlorastorlite Greenstone infused with Thomsonite, suitable for setting in fine jewelry.
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This beautiful pink and green gemstone is an eye-catching Michigan Greenstone (chlorastrolite) studded with Thomsonite. Along one side it is almost all pink Thomsonite. This cabochon is thick, about 1/4". This was collected on Isle Royale many years ago, and is a treasure unique to the Island, rarer than diamonds.
The greenstone, also known as chlorastrolite, is the state gem of Michigan and is found only is small select areas of the Keweenaw Peninsula or on Isle Royale National Park.
1 gram 10 mm