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Kuliokite-(Y)

#64317
SOLD
Kuliokite-(Y) from Ploskaya Mt, Western Keivy Massif, Kola Peninsula, Russia - 64317
Kuliokite-(Y) from Ploskaya Mt, Western Keivy Massif, Kola Peninsula, Russia - 64317

Kuliokite-(Y)

#64317
Availability
Sold
Size
2.5 x 2 x 2 cm - Thumbnail 
Formula
Y4Al(SiO4)2(OH)2F5 (RRUFF)
Locality
Ploskaya Mt, Western Keivy Massif, Kola Peninsula, Russia
Tagged
REE mineral

Not well seen in the photos but the Kuliokite occurs as murky white, sparkly micro crystals. Kuliokite-(Y) is a very rare rare earth mineral, which occurs at only three worldwide localites. It occurs in several places on this piece.

Kuliokite-(Y)

Formula
Y4Al(SiO4)2(OH)2F5 
Crystal System
Triclinic 
Crystal Habit
Platy 
Cleavage
Poor, None, None 
Luster
Adamantine 
Color
colorless, white, light pink 
Streak
white 
Class
Triclinic - Pedial 
Hardness
4-5 

Data courtesy of Webmineral.

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