Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99994.392
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
-
{010} moderate, {100} imperfect
Mohs Hardness
-99996.5-7
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)