Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
Subconchoidal, ConchoidalWalter Schumann, Conchoidal
Perfect on {001}, poor on {201} with 38.5° angle between the two
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
{???} Distinct, {???} Distinct, {???} Distinct
LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)