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Allanite-(Y)

#BAC62384
SOLD
Allanite-(Y) from Bancroft, Ontario, Canada - BAC62384
Allanite-(Y) from Bancroft, Ontario, Canada - BAC62384

Allanite-(Y)

#BAC62384
Availability
Sold
Size
2 x 1.1 x 0.2 cm - Thumbnail 
Formula
CaYFe2+Al2(Si2O7)(SiO4)O(OH) (RRUFF)
Locality
Bancroft, Ontario, Canada
Tagged
REE mineral

Single black, rough but complete crystal.

Allanite-(Y)

Formula
CaYFe2+Al2(Si2O7)(SiO4)O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Massive - Granular, Disseminated 
Cleavage
Imperfect, Imperfect, None 
Luster
Vitreous - Greasy 
Color
brown, black 
Streak
grayish brown 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
5.5 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection
Mineralpedia
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