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Pyrope Almandine
Pyrope Almandine

Polyhalite
Polyhalite



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Pyrope Almandine
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Polyhalite

Pyrope Almandine and Polyhalite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.62-4.202.78
1 7.18
👆🏻

Fracture

-
Conchoidal

Cleavage

None
Perfect on {10 1 }; parting on {010}

Mohs Hardness

7-7.53.5
2 10
👆🏻

Chemical Composition

(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
K2Ca2Mg(SO4)4·2H2O

Pyrope Almandine and Polyhalite Chemical Formula

While comparing Pyrope Almandine 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 Pyrope Almandine and Polyhalite chemical formula.

  • Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Pyrope Almandine and Polyhalite Specific Gravity

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