Tenacity
Brittle
-
Solubility
insoluble
Soluble
Durability
-
-
Specific Gravity
6.86-7.031.847-1.852
1
7.18
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Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Poor to indistinct on {010}
Mohs Hardness
6-72-3
2
10
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Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca3Al3(SiO4)3(OH)