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Star Ruby
Star Ruby

Cordierite
Cordierite



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Star Ruby
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Cordierite

Star Ruby and Cordierite Physical Properties

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)
 
Brittle
-
-
2.57-2.66
Subconchoidal, Conchoidal
Fair on {100}, poor on {001} and {010}
7-7.5
Mg2Al4Si5O18

Star Ruby and Cordierite Chemical Formula

While comparing Star Ruby and Cordierite 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 Cordierite chemical formula.

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Star Ruby and Cordierite Specific Gravity

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