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Libethenite On Quartz Psm Calcite

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PDM741849

Libethenite On Quartz Psm Calcite

Gem Crystal

Description Tabs

Description
Locality: 
Miguel Vacas Mine, Vila Viçosa, Evora District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 4.8 × 2.8 cm
Largest Crystal: 
0.50cm
Description

Sharp lustrous crystals of libethenite on a quartz matrix that is indeed a pseudomorph after scalenohedral calcite. The green colour is very intense and the crystal size is good for the locality.

Ex. Gabriel Fauvart specimen.

Mineral Data
What's on the rock

Libethenite

Formula: 
Cu2(PO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Podlipa deposit, Ľubietová (Libetbánya; Libethen), Banská Bystrica Co., Banská Bystrica Region, Slovakia

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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