Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.19-3.563.02
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Conchoidal
Cleavage
{110} Perfect, {010} Indistinct
{0001} Poor
Mohs Hardness
5.5-6-9999
2
10
👆🏻
Chemical Composition
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)