Amethyst Quartz Crystals on Matrix - NBB 076

Amethyst quartz crystals on a trimmed matrix

Measurements:  72 x 43 x 30 mm

Description:  Amethyst quartz crystals on a quartz matrix that has been trimmed at the bottom, for better display. There are also bits of feldspar on the specimen.

The larger crystals have only a few small nicks, but some of the smaller crystals to the edges are damaged.

Weight of Specimen:  101.3 g

Chemical Composition:   SiO2  (quartz
                                        KAlSi3O8 (feldspar)

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

Location:  Brandberg, Namibia.

Specimen Code:  NBB 076

US $ 70

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