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Fluocerite-(Ce) Psm Bastnäsite-(Ce)

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CR107814

Fluocerite-(Ce) Psm Bastnäsite-(Ce)

Rare Mineral

Description Tabs

Description
Locality: 
Novo Horizonte, Bahia, Brazil
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3.3 × 3.2 cm
Description

Dozends of hexagonal crystals of fluocerite-Ce after bastnasite-Ce on hematite with golden needles of rutile associated.

Beautiful and rare specimen.

Mineral Data
What's on the rock

Fluocerite-(Ce)

Formula: 
(Ce,La)F3
Strunz: 
3.AC.15
Hardness: 
4.5 - 5.0
Streak: 
Off-white
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

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