Azurite, Malachite and (?)Duftite - NTS 043

Measurements:  36 x 28 x 18 mm

Description:  A stunning small specimen consisting of semi-transparent azurite crystals, with a few malachite after azurite crystals, on a matrix consisting 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)  4.5 

Location:  Tsumeb, Northern Namibia.

Specimen Code:   NTS 043

US $ 120