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Tantalaeschynite-(Y)

#PD52153
SOLD
Tantalaeschynite-(Y) from Raposa pegmatite, São José do Sabugi, Paraíba, Brazil - PD52153
Tantalaeschynite-(Y) from Raposa pegmatite, São José do Sabugi, Paraíba, Brazil - PD52153

Tantalaeschynite-(Y)

#PD52153
Availability
Sold
Size
0.5 x 0.3 x 0.3 cm - Thumbnail 
Formula
Y(Ta,Ti,Nb)2O6 (RRUFF)
Locality
Raposa pegmatite, São José do Sabugi, Paraíba, Brazil
Tagged
REE mineral

A 5mm chip of Tantalaeschynite-(Y), a black rare-earth mineral with a resinous luster. It is named for the tantalian end-member of a series with aeschynite-(Y). Tantalaeschynite-(Y) is very rare and found, according to Mindat, is found in only (published) three deposits worldwide. This is the type locality.

Type Locality

Tantalaeschynite-(Y)

Formula
Y(Ta,Ti,Nb)2O6 
Crystal System
Orthorhombic 
Crystal Habit
Metamict 
Cleavage
None, None, None 
Luster
Resinous 
Color
brownish black, black 
Streak
yellowish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
5.5-6 

Data courtesy of Webmineral.

Collection
Don Phillips Collection
Special Info
Type Locality

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