David K. Joyce


7.3x5.5x1.7 cm
N'Chwaning II Mine
Hotazel, Cape Province
South Africa


Item number: 21597

The top of this fragment of manganiferous rock is covered with sturmanite crystals. The sturmanite is in hexagonal-pyramidal crystals ranging in colour from a dull orangey-brown to a brighter yellowish-brown. Very sharp crystals!