Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.40-4.203.43-3.44
1
7.18
👆🏻
Fracture
-
-
Cleavage
Indistinct
None Observed
Mohs Hardness
-99996.5-7
2
10
👆🏻
Chemical Composition
Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references