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Betafite

#PD31312
SOLD
Betafite from Betafo district, Madagascar - PD31312
Betafite from Betafo district, Madagascar - PD31312

Betafite

#PD31312
Availability
Sold
Size
3 x 3 x 1.5 cm - Thumbnail 
Formula
A2(Ti,Nb)2O6Z (RRUFF)
Locality
Betafo district, Madagascar

Thick crystal of Betafite, Betafite sub-group of the Pyrochlore group that is, which appears to be partially altered. Crungy yet interesting piece.

The David Shannon label mentions that this piece was collected in 1907 by Mr. Lacroix and that it's Type locality, probably prior the the grouping and sub-grouping.

Betafite

Formula
(Ca,U)2(Ti,Nb,Ta)2O6(OH) 
Crystal System
Isometric 
Crystal Habit
Encrustations, Massive - Granular 
Cleavage
None, None, None 
Luster
Vitreous - Greasy 
Color
brown, black, brownish green, yellow, greenish black 
Streak
yellowish white 
Class
Isometric - Hexoctahedral 
Fracture
Conchoidal 
Hardness
5-5.5 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Betafite
On Dakota Matrix
Other Available Betafite
WebMineral
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Mindat
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