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Quartz With Goethite Inclusions

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BEN1002451

Quartz With Goethite Inclusions

Description Tabs

Description
Locality: 
Köster - Risse Quarries, Hohe Liet, Arnsberg, North Rhine - Westphalia, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 0.8 cm
Description

Quartz crystals with yellowish to brownish inclusions of goethite/limonite, discussed to be caused by archea bacteria, or, with some others authors,fungi mycelia (goethite substitute mycelium).
Big crystals for the place.

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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