Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.34-2.513.76-3.77
1
7.18
👆🏻
Fracture
-
-
Cleavage
None
{110} Perfect, {110} Perfect
Mohs Hardness
-99995-6
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O
(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.