Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.502.9-3.5
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
Distinct on {100} and {110}
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
5.5-65.5-6
2
10
👆🏻
Chemical Composition
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)