Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
{???} Distinct, {???} Indistinct
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)