Amethyst Crystals and Chabazite on Sparkling Quartz Chalcedony in Basalt - India Specimen #10 Thunder Bay Amethyst Physically

Physically

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Amethyst Crystals and Chabazite on Sparkling Quartz Chalcedony in Basalt - India Specimen #10 Thunder Bay Amethyst Physically1. 43" x 1. 05" x 1. 02" From Khadakwani, Madhya Pradesh, Central India These specimens feature amethyst crystals that formed over druzy quartz chalcedony. This formation occurred within a cavity in the basalt host rock. Apophyllite, Barite (barytes), Chabazite and Julgoldite crystals have also been reported as being present within some of these cavities. Based on the luster and striations of the additional colorless crystals within this cavity, it is