Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.80-5.50-9999
1
7.18
👆🏻
Fracture
-
-
Cleavage
Indistinct
None
Mohs Hardness
5-5.53-4
2
10
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Chemical Composition
(Ce,La,Nd,Th)PO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite