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Polyhalite
Polyhalite

Girasol
Girasol



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Polyhalite
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Girasol

Polyhalite and Girasol Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.781.98-2.50
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

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

Mohs Hardness

3.55.5-6.5
2 10
👆🏻

Chemical Composition

K2Ca2Mg(SO4)4·2H2O
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Polyhalite and Girasol Chemical Formula

While comparing Polyhalite and Girasol 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 Polyhalite and Girasol chemical formula.

  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
  • Chemical formula of Girasol- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Polyhalite and Girasol Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Girasol Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Girasol Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 1.98-2.50 whereas that of Girasol is 1.98-2.50.