Tenacity
-
Brittle
Solubility
-
insoluble
Durability
-
-
Specific Gravity
2.55-2.576.86-7.03
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
6-6.56-7
2
10
👆🏻
Chemical Composition
KAlSi3O8
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references