Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.785.5
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
{???} Distinct, {???} Indistinct
{111} Indistinct, {111} Indistinct, {111} Indistinct
Mohs Hardness
5-65-5.5
2
10
👆🏻
Chemical Composition
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references