Quartz Crystal Group with Bits of Feldspar - NBB 073

Quartz crystal group with amethyst and bits of feldspar

Measurements:  93 x 75 x 43 mm

Description:  A quartz crystal specimen with very interesting growth patterns and more intense amethyst colouring towards the terminations. The specimen has bits of feldspar on some surfaces. 

The front side of the specimen has only a few small nicks, while one of its sides and the back of the specimen (where it became detached from its matrix) has damage.

Weight of Specimen:  295.1 g

Chemical Composition: 
 SiO2 (quartz)       
                                        KAlSi3O8  (feldspar)

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

Location:  Brandberg, Namibia.

Specimen Code:  NBB 073

US $ 450

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