Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.95-5.02.71-2.72
1
7.18
👆🏻
Fracture
Uneven
Fibrous
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
{???} Good
Mohs Hardness
4-56-6.5
2
10
👆🏻
Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)