Quartz Crystal Group BARG 019

Quartz crystal group

Measurements:  45 x 20 x 13 mm 

Description:  Two quartz crystals
, of which one is a semi-sceptre, have a few bits of feldspar attached. 

When held against light, one can see that the sceptre 'head' (as well as the other crystal's termination) formed through secondary quartz growth at some stage after the two crystals' initial growth.

The semi-sceptre has a large nick to the back of its termination.

Weight of Specimen:  14.2 g 

Chemical Composition:   SiO2 (quartz)
                                        KAlSi3O8 (feldspar)

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

Location:  Northern Cape, South Africa. 

Specimen Code:  BARG 019


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