Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.45-2.504.95-5.0
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Poor on {110}
Imperfect to indistinct on {10 1 0}, parting on {0001}
Mohs Hardness
5.5-64-5
2
10
👆🏻
Chemical Composition
KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references