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Amethyst With Goethite Inclusions

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SLN645437

Amethyst With Goethite Inclusions

Description Tabs

Description
Locality: 
Rio Grande do Sul, Brazil
Class: 
Crystals on Matrix
Size Range: 
Museum (18cm plus)
Size: 
7.3 × 21.3 × 11.7 cm
Weight: 
1 315.00gr
Description

Big specimen from Brazil of quartz var amethyst in perfect crystals of extreme transparency and brightness with inclusions of black and golden acicular goethite crystals.

Mineral Data
What's on the rock

Amethyst

Variety Of: 

Quartz

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

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

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