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Cafarsite & Senaite

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SER514230

Cafarsite & Senaite

Type Locality

Description Tabs

Description
Locality: 
Devero Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.7 × 1.1 cm
Description

Several brown crystals of cafarsite (Cervandone is type locality) with black lustrous senaite crystals

Mineral Data
What's on the rock

Cafarsite

Formula: 
Ca5.9Mn1.7Fe3Ti3(AsO3)12·4-5H2O
Strunz: 
4.JC.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Type Locality: 
Wanni glacier - Scherbadung area (Monte Cervandone), Kriegalp Valley (Chriegalp Valley), Binn Valley, Wallis (Valais), Switzerland

Senaite

Formula: 
Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
Strunz: 
4.CC.40
Hardness: 
6.0 - 6.5
Type Locality: 
Datas (former Dattas), Minas Gerais, Brazil