Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.82-4.00
1
7.18
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Fracture
-
-
Cleavage
None
{???} Indistinct
Mohs Hardness
3-45.5
2
10
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Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
Mn2+9(SiO 4) 4(OH,F) 2Anthony et al , Handbook of mineralogy (2001)