Cobaltoan Dolomite and Malachite, on Matrix - VAR 100

Measurements:  58 x 23 x 21 mm

Description:  Cobaltoan dolomite crystals with bits of malachite, on rock matrix. 

The only notable damage is to the edges of the crystal areas.

Weight of Specimen:  32.6 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:  VAR 100

US $ 18
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