Ettringite, Calcite
Small Cabinet, 5.1 x 2.9 x 1.8 cm
Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa

Dazzling coating of gemmy microcrystals of Ettringite on well-terminated calcite crystals. The color and luster of the Ettringite is about as brilliant as you will find.