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Bastnäsite

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CR187911

Bastnäsite

Rare Mineral

Description Tabs

Description
Locality: 
Befanamo Pegmatite, Beronono, Anjozorobe, Analamanga, Madagascar
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.7 × 2.1 cm
Description

A huge brown bastäsite crystal from Madagascar.

Mineral Data
What's on the rock

Bastnäsite

Synonym Of: 

Bastnäsite-(Ce)

Formula: 
(Ce,La)(CO3)F
Strunz: 
5.BD.20a
Hardness: 
4.0 - 4.5

Bastnäsite-(La)

Formula: 
(La,Ce)(CO3)F
Strunz: 
5.BD.20a
Hardness: 
4.0 - 5.0

Bastnäsite-(Nd)

Formula: 
Nd(CO3)F
Strunz: 
5.BD.20a
Hardness: 
4.0 - 4.5

Bastnäsite-(Y)

Formula: 
(Y,Ce)(CO3)F
Strunz: 
5.BD.20a
Hardness: 
4.0 - 4.5