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Cervandonite-(Ce) Rutile & Hematite

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SER779857

Cervandonite-(Ce) Rutile & Hematite

Type Locality

Description Tabs

Description
Locality: 
Monte Cervandone Area, Devero Alp, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.6 × 1.5 cm
Description

some black cervandonite crystals on gneiss from the type locality with red rutile and black hematite ; the white powder could be the rare new mineral deveroite, here not analysed

Mineral Data
What's on the rock

Cervandonite-(Ce)

Formula: 
(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)
Strunz: 
9.BE.92
Hardness: 
5.0
Type Locality: 
Mt Cervandone (Scherbadung; Cherbadung), Devero Alp, Baceno, Devero Valley, Antigorio Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Rutile

Formula: 
TiO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal - Ditetragonal Dipyramidal
Hardness: 
6.0 - 6.5
Type Locality: 
Rutile locality, Horcajuelo de la Sierra, Madrid, Spain

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0