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Polyhalite
Polyhalite

Bowenite
Bowenite



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Polyhalite
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Bowenite

Polyhalite and Bowenite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.782.58-2.80
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Irregular

Cleavage

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

Mohs Hardness

3.55.5
2 10
👆🏻

Chemical Composition

K2Ca2Mg(SO4)4·2H2O
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Polyhalite and Bowenite Chemical Formula

While comparing Polyhalite and Bowenite 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 Bowenite chemical formula.

  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
  • Chemical formula of Bowenite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Polyhalite and Bowenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Bowenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Bowenite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.58-2.80 whereas that of Bowenite is 2.58-2.80.