Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99992.60-3.02
1
7.18
👆🏻
Fracture
-
-
Cleavage
None
Perfect
Mohs Hardness
7-9999
2
10
👆🏻
Chemical Composition
SiO2
(Mg,Fe2+ ) 5Al(Si 3Al)O 10(OH) 8Anthony et al , Handbook of mineralogy (2001)