Also called greenstone this stone is a variety of the mineral pumpellyite. We often hear i thought petoskey stone was the state stone the answer is petoskey stone is the state stone and greenstone is the state gemstone geology formed after hot lava flows settled and hardened about 1 billion years ago. Chlorastrolite is michigan s state gem. Made with medium michigan state gem chlorastrolite. Michigan designated petoskey stone as the official state stone in 1965.
Get 20 off any purchase. In 1972 the governor of michigan signed a bill designating chlorastrolite as the official state gem. Michigan sterling silver ring. Mainly found along the beaches of the great lakes and common in isle royale national park these stones are usually pebble sized and bluish green in color with a star pattern of crystals that resemble a turtle s shell. Michigan s state gemstone pumpellyite the state gemstone is chlorastrolite a variety of the mineral pumpellyite.
Made with large michigan state gem chlorastrolite. Official state gem of michigan. My michigan 1937 the resolution passed by the michigan house of representatives specified my michigan as the official state song but this was changed upon introduction in the state senate to an official song because the state failed to purchase the copyright from the song s authors the song is rarely performed today. Chlorastrolite a variety of the mineral pumpellyite. Michigan s state gem is as arrestingly beautiful as the lake superior shores where it s found and you won t find it anywhere else.
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Just email us and we ll send you a coupon. In prehistoric times about 350 million years ago michigan was covered by a shallow sea that teemed with coral colonies. All state rocks minerals all state fossils. The 11th largest state michigan is comprised of two separate peninsulas. Minerals and gemstones found in michigan.Michigan designated isle royale greenstone chlorastrolite as the official state gem in 1973. It also goes by the common name of greenstone or isle royal greenstone. Michigan state gem chlorastrolite. Petoskey stone hexagonaria pericarnata is actually not a stone but fossilized coral. The term greenstone can be confusing in that it is both a rock and a mineral term.
Chlorastrolite a variety of the mineral pumpellyite is a bluish green stone with a pattern of slender star like crystals which results in a turtle back pattern. Chlorastrolite a variety of the mineral pumpellyite is a bluish green stone with a pattern of slender star like crystals which results in a turtle back pattern. Michigan designated isle royale greenstone chlorastrolite as the official state gem in 1973. Just email us and we ll send you a coupon. Made with large michigan state gem chlorastrolite.
The term greenstone can be confusing in that it is both a rock and a mineral term. Get 20 off any purchase. Also called greenstone this stone is a variety of the mineral pumpellyite.
