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Quartz & Calcite

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TPX788675

Quartz & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Cervera del Río Alhama, La Rioja, Spain
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 5.7 × 4.3 cm
Weight: 
216.00gr
Description

Spectacular herkimer-style quartz on a matrix of crystallized calcite on a matrix of black limestone from the Cervera del Rio Alhama area in La Rioja, Spain.

Mineral Data
What's on the rock

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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