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0 item @ $0.00  

Mixed Minerals

Friday, 03 April 2020 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cassiterite and more from places like St. Just United mine, St. Just, Cornwall, England.

Cassiterite

#52437
Locality
St. Just United mine, St. Just, Cornwall, England 
Formula
SnO2 
Availability
Available
Price
$35.00
Size
4.5 x 4.5 x 4 cm - Miniature 
Tagged
tin  

Solid chunk of Cassiterite one of the more famous and historic tin mines in the world. There are numerous, greasy brown, prismatic crystals to about 1-2mm of which I could not obtain suitable photos of...


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 

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