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This greenstone has a first-rate pattern and chatoyancy. This would make a great pendant or large ring. 14 mm x 11 mm
The Michigan greenstone, also known as chlorastrolite, was selected as the state gem of Michigan in 1973. This rare mineral is found only on small select areas of the Keweenaw Peninsula or on Isle Royale National Park.
The Michigan greenstone, also known as chlorastrolite, was selected as the state gem of Michigan in 1973. This rare mineral is found only on small select areas of the Keweenaw Peninsula or on Isle Royale National Park.