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Allanite-(Ce) in Fluorite

#PD35644

Allanite-(Ce) in Fluorite

#PD35644
Availability
Sold
Size
9 x 7 x 6 cm - Sm Cabinet 
Formula
CaCeFe2+Al2(Si2O7)(SiO4)O(OH) (RRUFF)
Locality
Otter Lake, Quebec, Canada

Large bladed Allanite crystals to 3cm, one freely crystallized in void associated with deep purple Fluorite and Apatite.

Allanite-(Ce)

Formula
CaCeFe2+Al2(Si2O7)(SiO4)O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Massive - Granular, Disseminated 
Cleavage
Imperfect, Imperfect, None 
Luster
Vitreous - Greasy 
Color
brown, reddish brown, black 
Streak
grayish brown 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
5.5 

Data courtesy of Webmineral.

Collection
Phillips Collection

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