Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6
{110} Distinct, {001} Indistinct, {100} Indistinct
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references