Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.95-5.02.82
1
7.18
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Fracture
Uneven
-
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
Perfect in one direction, indistinct in one direction
Mohs Hardness
4-56
2
10
👆🏻
Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
K2Na(Ca,Mn)2Ti[O|Si7O18(OH)]