Amethyst Quartz Crystal on Matrix – NBB 052

Pretty Specimen, Amethyst Quartz Crystal on Matrix - Namibia

Measurements:  61 x 52 x 27 mm

Description:  An amethyst crystal (20 x 14 x 12 mm) that sits on a conglomerate matrix of calcite, quartz and feldspar. The dark specks are very small amethyst crystals. The crystal has only minute nicks, and a small pressure mark to one of its facets.

A really pretty display specimen!

Weight of Specimen:  45.5 g

Chemical Composition:  SiO2  (quartz)
                                       CaCO3   (calcite)                                                                                                                              KAlSi3O8  (feldspar)                          

Hardness on Mohs Scale:   (quartz)  7
                                            (calcite)  3    
 6 - 6.5 

Location:  Brandberg, Namibia.

Specimen Code:  NBB 052

US $ 65          

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