Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.3925.35
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
{010} moderate, {100} imperfect
Perfect on {100}, imperfect on {001}
Mohs Hardness
6.5-72.5
2
10
👆🏻
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)