Tenacity
-
-
Solubility
Partly soluble in HCl.
-
Durability
-
-
Specific Gravity
3.32-3.433.80-4.15
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
perfect along [010] and [100]
Mohs Hardness
5.5-63.5-4
2
10
👆🏻
Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references