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Bismuthinite Bismutite & Tyrolite

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SER791034

Bismuthinite Bismutite & Tyrolite

Description Tabs

Description
Locality: 
Monte Cervandone Area, Devero Alp, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 4.1 × 3.1 cm
Description

metallic bismuthinite with green bismutite and tufts of tyrolite crystals

Mineral Data
What's on the rock

Bismuthinite

Formula: 
Bi2S3
Strunz: 
2.DB.05
Hardness: 
2.0 - 2.5
Streak: 
Lead-gray

Bismutite

Formula: 
(BiO)2CO3
Strunz: 
5.BE.25
Crystal System: 
Tetragonal
Hardness: 
2.5 - 3.5
Streak: 
Grey
Type Locality: 
Arme Hilfe Mine, Ullersreuth, Hirschberg, Vogtland, Thuringia, Germany

Tyrolite

Formula: 
Ca2Cu9(AsO4)4(CO3)(OH)8·11H2O
Strunz: 
8.DM.10
Hardness: 
1.5 - 2.0
Type Locality: 
Falkenstein, Falkenstein District, Schwaz, Brixlegg - Schwaz area, Inn valley, North Tyrol, Tyrol, Austria