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Ajoite
Ajoite

Polyhalite
Polyhalite



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Ajoite
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Polyhalite

Ajoite and Polyhalite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

Decomposed by acids
Soluble

Durability

-
-

Specific Gravity

2.962.78
1 7.18
👆🏻

Fracture

-
Conchoidal

Cleavage

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

Mohs Hardness

53.5
2 10
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Chemical Composition

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
K2Ca2Mg(SO4)4·2H2O

Ajoite and Polyhalite Chemical Formula

While comparing Ajoite 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 Ajoite and Polyhalite chemical formula.

  • Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Ajoite and Polyhalite Specific Gravity

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