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Pyrope
Pyrope

Rubellite
Rubellite



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Pyrope
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Rubellite

Pyrope and Rubellite Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

insoluble in water
-

Durability

-
-

Specific Gravity

3.62-3.873.01-3.06
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

None
Indiscernible

Mohs Hardness

7-7.57-7.5
2 10
👆🏻

Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Pyrope and Rubellite Chemical Formula

While comparing Pyrope and Rubellite 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 Rubellite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Pyrope and Rubellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.