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Diopside
Diopside

Polyhalite
Polyhalite



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Diopside
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Diopside and Polyhalite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.22-3.40
2.78
1.5 Fracture
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal, Brittle
1.6 Cleavage
Distinct/good on {110}
Perfect on {10 1 }; parting on {010}
1.7 Mohs Hardness
5-6
3.5
1.8 Chemical Composition
CaMgSi2O6
Not Available

Diopside and Polyhalite Chemical Formula

While comparing Diopside 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 Diopside and Polyhalite chemical formula.

  • Chemical formula of Diopside- CaMgSi2O6
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Diopside and Polyhalite Specific Gravity

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