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RM1105   Sturmanite with brucite

N'Chwaning III Mine, Kalahari Manganese Fields, Kuruman, Northern Cape, South Africa

In this specimen we can enjoy a rich group of lenticular sturmanite crystals orange, bright, with a yellow to orange color, transparent and with very sharp faces and edges. It is accompanied by rosettes of greenish brucite, a magnesium hydroxide. In the same specimen there are two very interesting species for systematic and aesthetic collectors.

Size: 4.3 x 3.4 x 2.8 cm.
Main crystal: 4 x 3 mm.
Found in 2014.