Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
{001} perfect; {111} imperfect, may exhibit parting on , {011}
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
{110} good, 100 moderate, parting on {092} and {011}
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)