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Ametrine
Ametrine

Polyhalite
Polyhalite



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Ametrine
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Polyhalite

Ametrine and Polyhalite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.652.78
1 7.18
👆🏻

Fracture

-
Conchoidal

Cleavage

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

Mohs Hardness

73.5
2 10
👆🏻

Chemical Composition

SiO2
K2Ca2Mg(SO4)4·2H2O

Ametrine and Polyhalite Chemical Formula

While comparing Ametrine 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 Ametrine and Polyhalite chemical formula.

  • Chemical formula of Ametrine- SiO2
  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Ametrine and Polyhalite Specific Gravity

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