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Quartz & Goethite

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ATH664390

Quartz & Goethite

Description Tabs

Description
Locality: 
Mangyshlak Peninsula, Mangystau Province, Kazakhstan
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.5 × 6 × 6 cm
Weight: 
574.00gr
Description

Quartz from a really uncomon locality Mangyschlak, Kazakhstan.

Color going to redish-brown because of the influence of hematite-goethite - you can also see the colors on the matrix.

Mineral Data
What's on the rock

Quartz

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

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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