Azurite, Malachite and (?)Duftite - NTS 043

Stunning specimen: semi-transparent azurite crystals on calcite crystals and other, on matrix

Measurements:  36 x 28 x 18 mm

Description:  A stunning small specimen consisting of semi-transparent azurite crystals, with a few malachite after azurite, on a matrix consiting of mainly (?)duftite. The bottom of the specimen is largely covered with (?)duftite.

The specimen has only a few very small nicks.

Weight of Specimen:  11.2 g

Chemical Composition:  Cu3(CO3)2(OH)2  (azurite)         
                                        Cu2+(CO3)(OH)2  (malachite) 
                                        PbCu(AsO4)(OH)  (duftite)

Hardness on Mohs Scale:  (azurite)  3.5 – 4  
                                           (malachite)  3.5 - 4
                                           (duftite)  4½ 

Location:  Tsumeb, Northern Namibia.

Specimen Code:   NTS 043

US $ 120


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