Tenacity
-
-
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.9-3.52.55-2.70
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Splintery, Conchoidal
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
Absent
Mohs Hardness
5.5-66.5-7
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
SiO2