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Crichtonite

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CHP884377

Crichtonite

Classic Locality

Description Tabs

Description
Locality: 
Monte Cervandone Area, Devero Alp, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 1.4 × 0.8 cm
Description

rich specimen with many beautiful black crystals of the rare crichtonite on matrix.

c. 3224

Mineral Data
What's on the rock

Crichtonite

Formula: 
(Sr,La,Ce,Y)(Ti,Fe3+,Mn)21O38
Strunz: 
4.CC.40
Hardness: 
5.0 - 6.0
Colour: 
Black
Streak: 
Dark grey
Type Locality: 
St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France...

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