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Polyhalite
Polyhalite

Enstatite
Enstatite



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Polyhalite
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Enstatite

Polyhalite and Enstatite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.783.20-3.25
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal

Cleavage

Perfect on {10 1 }; parting on {010}
Good/distinct on [210]

Mohs Hardness

3.55.5
2 10
👆🏻

Chemical Composition

K2Ca2Mg(SO4)4·2H2O
Mg 2Si 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Polyhalite and Enstatite Chemical Formula

While comparing Polyhalite and Enstatite 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 Enstatite chemical formula.

  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
  • Chemical formula of Enstatite- Mg 2Si 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Polyhalite and Enstatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Enstatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Enstatite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 3.20-3.25 whereas that of Enstatite is 3.20-3.25.