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Cleusonite

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SMM584074

Cleusonite

Classic Locality
Rare Mineral

Description Tabs

Description
Locality: 
Bella Tola, Saint-Luc, Anniviers, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.01 × 1.5 cm
Description

The cleusonite is an exclusive mineral of some Alpine locality and of few others in the world. Rarely it found in well-formed crystals. In this sample there are two well visible crystals, each one, on one side of the sample, the greatest, sized slightly less than 4 mm, both show very well some regular faces of their crystalline shape.

Boxed with Label
Mineral Data
What's on the rock

Cleusonite

Formula: 
(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38
Strunz: 
4.CC.40
Hardness: 
0.0
Colour: 
Black
Type Locality: 
Cleuson lake, Nendaz Valley, Wallis (Valais), Switzerland

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