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Star Ruby and Andesine Physical Properties


Andesine and Star Ruby Physical Properties


Physical Properties

Tenacity
-  
Brittle  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
3.95-4.10  
2.65-2.69  

Fracture
Uneven  
Uneven, Conchoidal  

Cleavage
None  
Perfect on {001}, good on {010}  

Mohs Hardness
-9999  
6-6.5  

Chemical Composition
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)  
(Na,Ca)Al1-2Si3-2O8  

Optical Properties >>
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Star Ruby and Andesine Chemical Formula

While comparing Star Ruby and Andesine 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 Andesine chemical formula.

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Star Ruby and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Ruby and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Ruby and Andesine Optical Properties during the identification of gemstone. Specific gravity of Star Ruby is 2.65-2.69 whereas that of Andesine is 2.65-2.69.

Blue Gemstones

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