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Axinite
Cassiterite
Cassiterite and Axinite Physical Properties


Physical Properties
Tenacity
-  
Brittle  
Solubility
-  
insoluble  
Durability
-  
-  
Specific Gravity
3.26-3.36  
6.86-7.03  
Fracture
Conchoidal  
Subconchoidal, Uneven, Conchoidal, Irregular  
Cleavage
Good on {100}  
{100} imperfect, {110} indistinct; partings on {111} or {011}  
Mohs Hardness
6.5-7  
6-7  
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references  
SnO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references  
Optical Properties >>
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