Physical Properties
Tenacity
Brittle
-
Solubility
Gelatinises in acids
-
Durability
-
-
Specific Gravity
2.4-2.53-3.15
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
Distinct on {110}
Good on [110] and on [001]
Mohs Hardness
5-66.0-6.5
2
10
👆🏻
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
[ ]Na2(Mg3Al2)Si8O22(OH)2