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Goethite With Quartz

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QRI685247

Goethite With Quartz

Former Bruno Cerato stock and collection (Italy)
Classic Locality

Description Tabs

Description
Locality: 
Levant Mine, Pendeen, Cornwall, United Kingdom
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 3 × 3 cm
Description

Possibly quite an old specimen of goethite with hyalin quartz from the United Kingdom. Goethite makes a brown botroidal aggregate with a catting effect, associated to a cluster of bery lustrous and transparent quartz crystals.
From the collection and stock of Bruno Cerato (Italy). The label marks Bristol, although it is most likely from the Levant mine.

Boxed with Label
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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