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Chiavennite & Natrolite

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ESM514792

Chiavennite & Natrolite

Description Tabs

Description
Locality: 
Svensken Quarry, Tuften, Tvedalen, Larvik, Vestfold og Telemark, Norway
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 2.8 × 1.8 cm
Description

Orange microcrystals of chiavennite on white elongated natrolite prisms

Mineral Data
What's on the rock

Chiavennite

Formula: 
CaMnBe2Si5O13(OH)2·2H2O
Strunz: 
9.GF.25
Hardness: 
3.0
Type Locality: 
Tanno, Chiavenna, Valchiavenna, Sondrio Province, Lombardy, Italy

Natrolite

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