Cobaltoan Dolomite - BARGii 034

Cobaltoan dolomite crystals on matrix

Measurements:  45 x 33 x 18 mm

Description:  Small, drusy cobaltoan dolomite crystals, with bits of malachite, sit on a trimmed rock matrix. 

The specimen has a few nicks.

Weight of Specimen:  37.9 g

Chemical Composition:  (Ca,Mg,Co)CO3 (cobaltoan dolomite)
                                        Cu2+(CO3)(OH)2 (malachite) 

Hardness on Mohs Scale:  (cobaltoan dolomite) 3.5 – 4
                                       (malachite) 3.5 - 4 

Location:  Congo (DRC), Africa.

Specimen Code:  BARGii 034

US $ 17

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