Azurite and Malachite - NTS 039

Small, exposed azurite geode, with azurite and malachite crystals on matrix

Measurements:  61 x 50 x 23 mm

Description:  A small, exposed azurite geode, together with more azurite crystals and malachite, sit on a conglomerate matrix. 

Most of the azurite crystals in the geode are undamaged, but some of those outside the geode, are damaged.

Weight of Specimen:  67.4 g

Chemical Composition:  Cu3(CO3)2(OH)(azurite)
                                       Cu2+(CO3)(OH)2  (malachite)     …   

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

Location:  Tsumeb, Northern Namibia.

Specimen Code:  NTS 039

US $ 65

 
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