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Moonstone
Moonstone

Polyhalite
Polyhalite



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Moonstone
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Polyhalite

Moonstone and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.56-2.60
Uneven, ConchoidalWalter Schumann
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
6-6.5
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Moonstone and Polyhalite Chemical Formula

While comparing Moonstone and Polyhalite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Moonstone and Polyhalite chemical formula.

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Moonstone and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone Vs Polyhalite during the identification of gemstone. Specific gravity of Moonstone is whereas that of Polyhalite is .