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Pleonaste
Pleonaste

Pyrope
Pyrope



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Pleonaste
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Pyrope

Pleonaste and Pyrope Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
insoluble in water

Durability

-
-

Specific Gravity

3.803.62-3.87
1 7.18
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Fracture

-
Conchoidal

Cleavage

Indistinct
None

Mohs Hardness

87-7.5
2 10
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Chemical Composition

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Pleonaste and Pyrope Chemical Formula

While comparing Pleonaste 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 Pleonaste and Pyrope chemical formula.

  • Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Pleonaste and Pyrope Specific Gravity

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