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0 item @ $0.00  

Cassiterite

#51033

Cassiterite

#51033
Availability
Sold
Size
7 x 5 x 3 cm - Sm Cabinet 
Formula
SnO2 (RRUFF)
Locality
Great Wheal Fortune, Breage, Cornwall, England
Tagged
tin

Sharp, lustrous, deep brown Cassiterite crystals to 2mm in Quartz vein. Don't take these Cassiterites from Cornwall for granted. Worldwide, there are not that many great localities for good tin minerals like Cornwall.

Cassiterite

Formula
SnO2 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Massive, Botryoidal 
Cleavage
Perfect, Indistinct, None 
Luster
Adamantine 
Color
brown, brownish black, colorless, green, gray 
Streak
brownish white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Irregular 
Hardness
6-7 

Data courtesy of Webmineral.

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