Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.783.03-3.18
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Irregular, Conchoidal
Cleavage
{???} Distinct, {???} Indistinct
{???} Indistinct
Mohs Hardness
5-67-7.5
2
10
👆🏻
Chemical Composition
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)