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Bastnäsite-(Ce) & Synchysite-(Ce)

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PDM884565

Bastnäsite-(Ce) & Synchysite-(Ce)

Description Tabs

Description
Locality: 
La Flèche Quarry, Bertrix, Luxembourg Province, Belgium
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.1 × 0.8 cm
Description

Rich specimen with sharp brown coloured crystals of bastnäsite-(Ce), indicated by black arrows, popping up of a carpet of white to orange synchysite-(Ce) rosettes.

Collected in 2005.

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

Synchysite-(Ce)

Formula: 
Ca(Ce,La)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
4.5
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

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