Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.52.90-3.38
1
7.18
👆🏻
Fracture
Conchoidal
Splintery
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
1 or 2,2 prismatic.
Mohs Hardness
5-5.56-7
2
10
👆🏻
Chemical Composition
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6