Tenacity
Brittle
-
Solubility
insoluble
insoluble in water
Durability
-
-
Specific Gravity
6.86-7.032.51-2.63
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Fibrous
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Perfect basal
Mohs Hardness
6-72.5-4.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)