Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.95-5.02.60-2.65
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
Perfect on {001}, very good on {010}, imperfect on {110}
Mohs Hardness
4-56-6.5
2
10
👆🏻
Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)