Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.13-3.26
1
7.18
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Fracture
-
Conchoidal
Cleavage
None
None
Mohs Hardness
3-4-9999
2
10
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Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)