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Bastnäsite-(Ce) Astrophyllite & Euxenite-(Y)

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PAV1064392

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Description
Locality: 
Água de Alto, Vila Franca do Campo, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 2.6 × 1.9 cm
Description

Very nice combo!!!

Pink bastnaesite-(Ce) crystals associated to orange astrophyllite and white euxenite 'urchin'.

Collected: 
2023
Boxed with Label
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

Astrophyllite

Formula: 
(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
3.0
Streak: 
Golden
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

Euxenite-(Y)

Formula: 
(Y,Ca,Ce,U,Th)(Nb,Ti,Ta)2O6
Strunz: 
4.DG.05
Hardness: 
5.5 - 6.5
Type Locality: 
Undisclosed pegmatite, Jølster, Sogn og Fjordane, Norway

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20
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