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Goethite & Smoky Quartz

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NST707758

Goethite & Smoky Quartz

Dipl. Ing. W. Maucher, Munich

Description Tabs

Description
Locality: 
Crystal Peak, Teller County, Colorado, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
10.2 × 6 × 3.5 cm
Description

An attractive, early 20th century display specimen showing fans of Goethite in lustrous crystals up to 1.2 cm perched on a 10 cm, transparent, gem quality Smoky Quartz. Comes with a handwritten label of famous german dealer Wilhelm Maucher (1879-1930), Munich.

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

Smoky Quartz

Variety Of: 

Quartz

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