Tenacity
-
-
Solubility
Partially soluble in water
-
Durability
-
-
Specific Gravity
1.774.80-5.50
1
7.18
👆🏻
Fracture
-
-
Cleavage
Perfect on {10 1 0}
Indistinct
Mohs Hardness
2-2.55-5.5
2
10
👆🏻
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Ce,La,Nd,Th)PO 4Michael OâDonoghue , Gems, Sixth Edition (2006)