Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
5.53.87-4.14
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Conchoidal
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
Poor on {120}, in traces on {001}
Mohs Hardness
5-5.55.5-6
2
10
👆🏻
Chemical Composition
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references