Tenacity
Brittle
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.20-2.234.95-5.0
1
7.18
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Fracture
Irregular/uneven, Uneven
Uneven
Cleavage
Perfect on {110} and {1 1 0}
Imperfect to indistinct on {10 1 0}, parting on {0001}
Mohs Hardness
5-5.54-5
2
10
👆🏻
Chemical Composition
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references