Isle Royale Greenstone
Lot:
Average weight: 1.75 ct
Total weight: 7.5 ct.
7 mm x 6 mm
Isle Royale Greenstone, also known as Chlorastrolite, is Michigan’s state gemstone. It is found primarily on Isle Royale in Lake Superior and in the Keweenaw Peninsula. Greenstone is a unique and rare mineral composed of pumpellyite, forming intricate, radiating patterns that resemble turtle shells or stars, often called “alligator-skin” pattern.
Lot:
Average weight: 1.75 ct
Total weight: 7.5 ct.
7 mm x 6 mm
Isle Royale Greenstone, also known as Chlorastrolite, is Michigan’s state gemstone. It is found primarily on Isle Royale in Lake Superior and in the Keweenaw Peninsula. Greenstone is a unique and rare mineral composed of pumpellyite, forming intricate, radiating patterns that resemble turtle shells or stars, often called “alligator-skin” pattern.
Lot:
Average weight: 1.75 ct
Total weight: 7.5 ct.
7 mm x 6 mm
Isle Royale Greenstone, also known as Chlorastrolite, is Michigan’s state gemstone. It is found primarily on Isle Royale in Lake Superior and in the Keweenaw Peninsula. Greenstone is a unique and rare mineral composed of pumpellyite, forming intricate, radiating patterns that resemble turtle shells or stars, often called “alligator-skin” pattern.