Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.9-3.53-3.15
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
Good on [110] and on [001]
Mohs Hardness
5.5-66.0-6.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
[ ]Na2(Mg3Al2)Si8O22(OH)2