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Metatorbernite On Quartz Psm Calcite

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PDM798833

Metatorbernite On Quartz Psm Calcite

Pseudomorph

Description Tabs

Description
Locality: 
Entraygues-sur-Truyere, Aveyron, Occitanie, France
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 4.7 × 1.3 cm
Description

Flattened crust of transparent quartz crystals, on a thin crust of deep-red iron hydr(oxides) that form acute triangular structures pointing to a pseudomorph after calcite. The green tabular metatorbernite crystals reach 2 mm and are scattered on these pseudomorphs.

Collected by Pierre Laurent in 07/2014.

Mineral Data
What's on the rock

Metatorbernite

Formula: 
Cu(UO2)2(PO4)2·8H2O
Strunz: 
8.EB.10
Hardness: 
2.5
Type Locality: 
Schneeberg District, Erzgebirge, Saxony, Germany

Quartz

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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