Sturmanite Image |
Mineral: | Sturmanite: Ca6(Fe+++,Al,Mn++)2(SO4)2[B(OH)4](OH)12ยท25(H2O) | |||||
Comments: | Sharply terminated dark yellowish crystal of sturmanite with a few lesser crystals attached to one side. | |||||
Location: | N'Chwaning mine, Kalahari Manganese Field, Northern Cape Province, South Africa. | |||||
Scale: | 17 x 10 x 16 mm. | |||||
Copyright: | © Dan Weinrich | |||||
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