Calcite on Goethite on Matrix SKMF 028

Measurements:  68 x 58 x 30  mm

Description:   Yellowish-white, botryoidal manganoam calcite on goethite, with a matrix of (?)iron ore. Damage to the sides of the specimen and small calcite  ball, is visible on the photographs.

Weight of Specimen:  109.9 g

Chemical Composition:  CaCO3  (calcite)   
                                      α-FeO(OH) (goethite)   

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

Location:  N'Chwaning, Kalahari Manganese Fields, Kuruman Area, South Africa.

Specimen Code:  SKMF 028 

US $ 60

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