Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.2-3.4-9999
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
Perfect on [001] imperfect on [100]
None
Mohs Hardness
33-4
2
10
👆🏻
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite