Olmiite with Calcite - SKMF 012

BDrusy aggregates of camel coloured olmiite crystals on small matrix

Measurements:  43 x 33 x 28 mm

Description:  Aggregates of olmiite crystals with bits of calcite.

The specimen has a number of contact marks. Please note that the colour of olmiite is difficult to portray accurately, due to the electric lighting.

Weight of Specimen:  44.2 g

Chemical Composition:  
CaMn[SiO3(OH)](OH)  (olmiite)                                                                                         CaCO3  (calcite)

Hardness on Mohs Scale:  (olmiite)  5-5.5
                                          (calcite)  3

Location:  N'Chwaning 2 mine, Kalahari Manganese Fields, Kuruman area, Northern Cape, South Africa.

Specimen Code:  SKMF 012

US $ 25

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