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Quartz On Goethite

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RPL877250

Quartz On Goethite

Description Tabs

Description
Locality: 
Whatley Quarry, Wells, Mendip, Somerset, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 8 × 5 cm
Largest Crystal: 
0.50cm
Weight: 
293.00gr
Description

Hundreds of clear quartz crystals completely cover a black goethite micro crystal layer over large calcite crystals as the matrix. The calcite fluoresces strong raspberry pink under SW UV.

A specimen from finds made in the late 1990’s.

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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