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A premium, professionally polished specimen of Michigan Isle Royale Greenstone (Chlorastrolite) exposed within its natural basalt matrix.
This piece was skillfully worked on lapidary wheels to bring out a mirror finish on the gem-grade greenstone windows. The main polished face reveals rich deep-green luster, distinct radiating "turtleback" starburst patterns, and excellent color depth against the contrasting reddish-brown matrix. Two other smaller polished pockets on the reverse side and bottom give this piece fantastic multi-angle display appeal.
Specimen Details:
Gem Type: Isle Royale Greenstone / Chlorastrolite (Michigan State Gemstone)
Matrix: Natural Basalt
Origin: Upper Peninsula, Michigan, USA
Weight: 24 grams
Dimensions: 3.5 cm long
Finish: Professionally hand-polished window with preserved natural matrix contours
Shipping: Free domestic shipping included
Piece pictured is the exact specimen you will receive. Photos and video taken in natural outdoor lighting to show true color and luster.
