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Vigezzite & Roggianite

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SER690204

Vigezzite & Roggianite

Type Locality

Description Tabs

Description
Locality: 
Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 0.5 × 0.4 cm
Description

little but rich specimen featuring dark orange crystals of vigezzite with white tufts of roggianite from their type locality

Mineral Data
What's on the rock

Vigezzite

Formula: 
(Ca,Ce)(Nb,Ti)2O6
Strunz: 
4.DF.05
Hardness: 
4.5 - 5.0
Streak: 
white
Type Locality: 
Alpe Rosso, Orcesco, Druogno, Vigezzo Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Formula: 
Ca2Be(OH)2Al2Si4O13·2.5H2O
Strunz: 
9.GB.20
Hardness: 
0.0
Type Locality: 
Alpe Rosso, Orcesco, Druogno, Vigezzo Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy