Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references