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Orpiment with Calcite. China.
Calcite and pyrite Brushy Creek Mine, Reynolds Co., Missouri.
Calcite with Quartz from Huanggang Mine, Inner Mongolia, China
Calcite from Congo.
Prismatic Calcite crystals / China
Fluorite on Calcite
❥ Realgar on Calcite
Dioptase and calcite
Calcite with Chalcopyrite from Missouri