Tenacity
Brittle
Brittle
Solubility
insoluble
Effervesces in cold
Durability
-
-
Specific Gravity
6.86-7.034-4.2
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Splintery
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Perfect on {100} and {010}
Mohs Hardness
6-74
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CuZn(CO3)(OH)2