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Star Ruby
Star Ruby

Pyrope
Pyrope



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Star Ruby
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Pyrope

Star Ruby and Pyrope Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.95-4.10
Uneven
None
-9999
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
insoluble in water
-
3.62-3.87
Conchoidal
None
7-7.5
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Star Ruby and Pyrope Chemical Formula

While comparing Star Ruby 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 Star Ruby and Pyrope chemical formula.

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Star Ruby and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Ruby and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Ruby Vs Pyrope during the identification of gemstone. Specific gravity of Star Ruby is whereas that of Pyrope is .