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Pink thomsonite inclusions in greenstone are considered an asset to the greenstone. This beautiful cabochon is especially nice because the thomsonite is attractively centered making this an ideal ring or pendant. It is a perfect size for jewelry, about 1/8" deep and 3/8" by almost 1/2" oval. .8 grams
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.