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Bastnäsite Catapleiite & Fluorite

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SYM850443

Bastnäsite Catapleiite & Fluorite

Rare Mineral

Description Tabs

Description
Locality: 
Aris Quarry, Windhoek Rural, Khomas Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.8 × 1.4 cm
Description

Orange rosettes of bastnasite with white, green and violet crystals of fluorite and a single catapleiite crystal for Aris Quarres. 

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

Catapleiite

Formula: 
Na2Zr(Si3O9)·2H2O
Strunz: 
9.CA.15
Crystal System: 
Hexagonal
Hardness: 
5.5 - 6.0
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic