Tenacity
-
Brittle
Solubility
-
Effervesces in hot HCl
Durability
-
-
Specific Gravity
5.52.92-3.12
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
[10 1 1] perfect
Mohs Hardness
5-5.53.5-4.5
2
10
👆🏻
Chemical Composition
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references