Home > Tsumeb Minerals – December 5 > MS1287 Adamite

Adamite - Sold

Adamite is a zinc arsenate mineral. Friedel & Daubrée (1866) named the species after Gilbert-Joseph Adam (1795-1881), French collector, whose collection was acquired by the École des Mines (Paris). Adamite occurs in zinc bearing deposits throughout the world, but often in small amounts. Tsumeb produces rather large and colorful crystals, such as this example. The rich green coloration is caused by copper substitution for zinc. This piece consists wholly of cuprian adamite, with crystals to 8 mm protruding from a druse of the same.