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Goethite On Quartz

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CLB602285

Goethite On Quartz

Classic Locality

Description Tabs

Description
Locality: 
Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region, Morocco
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.2 × 5.5 × 2.7 cm
Description

Glossy black acicular goethite ('Nadeleisenerz') on quartz crystals. Vuggy specimen.
 

Mineral Data
What's on the rock

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

Quartz

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

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