Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99992.81
1
7.18
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Fracture
-
Conchoidal
Cleavage
None
{001} Perfect
Mohs Hardness
3-44.5-5
2
10
👆🏻
Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references