Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.95-5.03.20-3.25
1
7.18
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Fracture
Uneven
Uneven, Conchoidal
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
Good/distinct on [210]
Mohs Hardness
4-55.5
2
10
👆🏻
Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references