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Natrolite & Calcite

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RHT757140

Natrolite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Hammerunterwiesenthal, Oberwiesenthal, Erzgebirgskreis, Saxony, Germany
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
13.3 × 10 × 5 cm
Weight: 
620.00gr
Description

Big Saxon natrolite specimen. Full of white acicular crystals and a group of colorless calcite crystals.

Mineral Data
What's on the rock

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany

Calcite

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