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Chernovite-(Y) & Cervandonite-(Ce)

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CR107817

Chernovite-(Y) & Cervandonite-(Ce)

Rare Mineral

Description Tabs

Description
Locality: 
Wanni Glacier, Monte Cervandone, Binn Valley, Valais, Switzerland
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 9.5 × 4.5 cm
Description

Honeybrown, globular chernovite-Y with lustrous black cervandinite-Ce crystal roses on matrix.

Associated with tiny brown microcrystals of anatase and rutil.

 

Mineral Data
What's on the rock

Chernovite-(Y)

Formula: 
Y(AsO4)
Strunz: 
8.AD.35
Crystal System: 
Tetragonal
Hardness: 
4.0 - 5.0
Type Locality: 
Nyarta-Syu-Yu River, Tel'pos-Iz Mt, Tyumenskaya Oblast', Polar Urals, Western-Siberian Region, Russia...

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