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Gem Green Sanidine

Gem green sanidine

Itrongay, Madagascar

This is a gem green sanidine crystal. Mineral ZoneTM obtained this specimen during the Denver 2013 shows. A surface coating of clay disguised its transparency; nevertheless the specimen appears in a Ste. Marie show report in the Mineralogical Record. Following the removal of the clay, professional photography shows its true quality. This is a world class feldspar crystal, from a classic locality but outstanding in its size, and also its curious green color.