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Apophyllite
Apophyllite

Polyhalite
Polyhalite



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Apophyllite
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Polyhalite

Apophyllite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.30-2.50
Uneven
Perfect on (001)
4.5-5
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Apophyllite and Polyhalite Chemical Formula

While comparing Apophyllite 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 Apophyllite and Polyhalite chemical formula.

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Apophyllite and Polyhalite Specific Gravity

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