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Weloganite
Weloganite

Polyhalite
Polyhalite



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Weloganite
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Polyhalite

Weloganite and Polyhalite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.20-3.222.78
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

Perfect on pseudo {0001}
Perfect on {10 1 }; parting on {010}

Mohs Hardness

33.5
2 10
👆🏻

Chemical Composition

Na2SrZrSi6O17(OH)3·3H2O
K2Ca2Mg(SO4)4·2H2O

Weloganite and Polyhalite Chemical Formula

While comparing Weloganite 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 Weloganite and Polyhalite chemical formula.

  • Chemical formula of Weloganite- Na2SrZrSi6O17(OH)3·3H2O
  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Weloganite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Weloganite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Weloganite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Weloganite is 2.78 whereas that of Polyhalite is 2.78.