Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.023.95-4.10
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven
Cleavage
{0001} Poor
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
-99993.5-4
2
10
👆🏻
Chemical Composition
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references