1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven
Uneven
1.6 Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
None observed
1.7 Mohs Hardness
1.8 Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na 3AlF 6Ulrich Henn and Claudio C.