Oyelite and Calcite – SKMF 023

Measurements:  37 x 30 x 21 mm

Description:  Snow white aggregates of oyelite crystals sit on sparkling, gemmy calcite crystals which, in turn, sit on a small matrix of a (to us, unknown) mineral. 

The specimen has no notable damage.

Weight of Specimen:  14.4 g  

Chemical Composition:  CaCO₃  (calcite)   
                                       Ca₁₀B₂Si₈O₂₉•12(H₂O)  (oyelite)    

Hardness on Mohs Scale:  3  (calcite)           
                                          5  (oyelite)   

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

Specimen Code:  SKMF 023