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Pyrope
Pyrope

Nepouite
Nepouite



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Pyrope
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Nepouite

Pyrope and Nepouite Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

insoluble in water
-

Durability

-
-

Specific Gravity

3.62-3.873.18-3.24
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

None
perfect on {001}

Mohs Hardness

7-7.52
2 10
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Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ni3(Si2O5)(OH)4

Pyrope and Nepouite Chemical Formula

While comparing Pyrope and Nepouite 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 Pyrope and Nepouite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Nepouite- Ni3(Si2O5)(OH)4

Pyrope and Nepouite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Nepouite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Nepouite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 3.18-3.24 whereas that of Nepouite is 3.18-3.24.