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Stillwellite-(Ce)

#RS59756
SOLD
Stillwellite-(Ce) from Mary Kathleen mine, Cloncurry Shire, Queensland - RS59756
Stillwellite-(Ce) from Mary Kathleen mine, Cloncurry Shire, Queensland - RS59756

Stillwellite-(Ce)

#RS59756
Availability
Sold
Size
3 x 2.3 x 2 cm - Thumbnail 
Formula
CeBSiO5 (RRUFF)
Locality
Mary Kathleen mine, Cloncurry Shire, Queensland
Tagged
REE mineral

Massive, dark brownish red, greasy luster Stillwellite, a rare earth mineral. The original label for this specimen states that it is from Mt. Isa, which is east of the actual locality (Mary Kathleen mine). This is the type locality.

Stillwellite-(Ce)

Formula
CeBSiO5 
Crystal System
Trigonal 
Crystal Habit
Rhombohedral Crystals, Massive 
Cleavage
Imperfect, None, None 
Luster
Resinous 
Color
red brown, pale pink 
Streak
white 
Class
Trigonal - Pyramidal 
Fracture
Conchoidal 
Hardness
6.5 

Data courtesy of Webmineral.

Collection
RC Stamberg Collection
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