Hausmanite and Andradite Garnets with (?)Calcite - SKMF 030

Measurements:  44 x 29 x 28 mm

Description:  A few hausmanite crystals, together with andradite garnets and calcite. 

The only notable damage is to the edges of the specimen. 

Weight of Specimen:  59.7 g

Chemical Composition:   Mn²⁺Mn³⁺₂O₄   (hausmanite)  
                                       Ca₃Fe³₂⁺(SiO₄)₃   (andradite garnet)
                                        CaCO₃  (calcite)  

Hardness on Mohs Scale:  (hausmanite)  5.5
                                          (andradite garnet)  6.5-7
                                           (calcite)  3

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

Specimen Code:  SKMF 030