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Opal-AN & Natrolite

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CLB608949

Opal-AN & Natrolite

Classic Locality

Description Tabs

Description
Locality: 
Maykranz Quarry, Langd, Hungen, Giessen, Giessen Region, Hesse, Germany
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 6.3 × 5.3 cm
Description

Very nice specimen with white, botryoidal opal-an (hyalite) and acicular, beige natrolite (visual ID) crystals. There's at least one more unidentified mineral species present in micro-crystals.

A vry interesting, outstanding specimen for that locality.

Mineral Data
What's on the rock

Opal-AN

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white

Natrolite

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

Seller Information

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