Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.023.16-3.23
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal, Uneven, Conchoidal to uneven
Cleavage
{0001} Poor
[0001] indistinct, [1010] indistinct
Mohs Hardness
-99995
2
10
👆🏻
Chemical Composition
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references