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Cervandonite-(Ce)

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SKY683622

Cervandonite-(Ce)

Type Locality

Description Tabs

Description
Locality: 
Wanni Glacier, Monte Cervandone, Binn Valley, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.2 × 1.2 cm
Description

Cervandonite is a classic and very sought after mineral from Binntal. This specimen has two wonderful black cervandonite rossettes.

The mineral has only been found in two very close localities in the Alps (Binntal and Cervandone, which are geologically analogous), so it is almost a one locality mineral.

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

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