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Diopside
Diopside

Pyrope
Pyrope



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Diopside
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Pyrope

Diopside and Pyrope Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
insoluble in water

Durability

-
-

Specific Gravity

3.22-3.403.62-3.87
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

Distinct/good on {110}
None

Mohs Hardness

5-67-7.5
2 10
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Chemical Composition

CaMgSi2O6
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Diopside and Pyrope Chemical Formula

While comparing Diopside and Pyrope 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 Pyrope chemical formula.

  • Chemical formula of Diopside- CaMgSi2O6
  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Diopside and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Diopside and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diopside and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Diopside is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.