Tenacity
-
Brittle
Solubility
-
insoluble
Durability
-
-
Specific Gravity
3.79-3.946.86-7.03
1
7.18
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Fracture
Lamellar, Splintery
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
{100} Good, {001} Good, {010} Poor
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
46-7
2
10
👆🏻
Chemical Composition
FeAs
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references