Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.95-5.03.25
1
7.18
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Fracture
Uneven
-
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
Imperfect in one direction
Mohs Hardness
4-55-5.5
2
10
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Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)