Measurements: 48 x 32 x 26 mm
Description: A group of quartz crystals, some with dark amethyst coloured terminations and shallow phantoms. There are bits of feldspar on some surfaces.
At least one of the crystals shows grainy whitish and brownish (?)feldspar trapped between the amethyst termination and clear outer layer of quartz. Some of the crystals are just partially covered by the outer (secondary) layer of quartz.
The middle crystal has a few indentations where another mineral once sat, and then eroded away over time.
A few of the terminations have small nicks.
Weight of Specimen: 35.3 g
Chemical Composition: SiO2
Hardness on Mohs Scale: 7
Location: Orange River pegmatites, Northern Cape, South Africa.
Specimen Code: BARG 077
US $ 15
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