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Bronzite
Bronzite

Polyhalite
Polyhalite



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Bronzite
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Polyhalite

Bronzite and Polyhalite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.352.78
1 7.18
👆🏻

Fracture

-
Conchoidal

Cleavage

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

Mohs Hardness

5.53.5
2 10
👆🏻

Chemical Composition

(Mg,Fe) 2Si 2O 6Ulrich Henn and Claudio C.
K2Ca2Mg(SO4)4·2H2O

Bronzite and Polyhalite Chemical Formula

While comparing Bronzite 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 Bronzite and Polyhalite chemical formula.

  • Chemical formula of Bronzite- (Mg,Fe) 2Si 2O 6Ulrich Henn and Claudio C.
  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Bronzite and Polyhalite Specific Gravity

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