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Quartz Var Amethyst

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PDM845508

Quartz Var Amethyst

Description Tabs

Description
Locality: 
Goboboseb Mountains, Brandberg, Dâures, Erongo Region, Namibia
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2 × 1.7 cm
Description

Excellent crystal of smoky quartz with an internal zone of deep purple amethyst and a transparent central scepter crystal at the core. It is a floater specimen, with the point base that was in contact with the matrix also crystallized and not broken. The transparency, colour saturation and lustre are very good. Near the top and just under the surface there are dozens of metallic black nail or pin-like inclusions, probably hematite, that are well visible if the piece is backlighted.

Acquired in 1997. Ex Jan Sibtsen #485.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Amethyst

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0
Colour: 
Purple

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