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Mineralpedia Details for Kentbrooksite

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Kentbrooksite

Kentbrooksite

Formula
(Na,REE)15(Ca,REE)6Mn3Zr3NbSi25O73(O,OH,H2O)3(F,Cl)2 
Crystal System
Trigonal 
Crystal Habit
Anhedral Grains, Aggregates 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
yellowish brown 
Streak
white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Uneven 
Hardness
5-6 
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Kentbrooksite from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada

Kentbrooksite from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
Special Info
Type Locality

Well-formed orange crystals less than 1mm.

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