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Bastnäsite-(Ce) & Pyrite

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CFL966086

Bastnäsite-(Ce) & Pyrite

Pseudomorph

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 4.5 cm
Description

Rich specimen of bastnasite-(Ce) and pyrite pseudomorph/epimorph after donnayite-(Y), associated with ankerite and albite.  Collected by Gilles Haineault in 1997.

Mineral Data
What's on the rock

Bastnäsite-(Ce)

Formula: 
(Ce,La)(CO3)F
Strunz: 
5.BD.20a
Crystal System: 
Hexagonal
Hardness: 
4.0 - 4.5
Type Locality: 
Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

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