1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.69-2.796.50-7.00
1
7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Irregular, Brittle, Conchoidal
1.6 Cleavage
Poor on {0001}
On {011}, distinct; on {001}, {013}, indistinct
1.7 Mohs Hardness
1.8 Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbMoO 4Walter Schumann , Gemstones of the world (2001)