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0 item @ $0.00  

Cassiterite

#52444

Cassiterite

#52444
Availability
Sold
Size
4.5 x 2.5 x 2 cm - Miniature 
Formula
SnO2 (RRUFF)
Locality
Geevor mine, Pendeen, St Just dist., Cornwall, England
Tagged
tin

A good representation of chocolate brown, very micro crystals of Cassiterite, with good luster to 2mm from this important and historic tin mining region in Cornwall. Nearly the entire specimen is Cassiterite.

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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