Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.783.95-4.10
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven
Cleavage
{???} Distinct, {???} Indistinct
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
5-63.5-4
2
10
👆🏻
Chemical Composition
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references