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Ruby and Austinite Physical Properties


Austinite and Ruby Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Easily soluble in cold dilute HCl   

Durability
Not Available   
Not Available   

Specific Gravity
3.97-4.05   
4.12   

Fracture
Conchoidal   
Brittle, Uneven, Brittle, Uneven   

Cleavage
No true cleavage   
Good in two directions parallel to the prism faces {110}   

Mohs Hardness
9   
4-4.5   

Chemical Composition
Al 2 O 3   
CaZn(AsO4)(OH)   

Optical Properties >>
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Ruby and Austinite Chemical Formula

While comparing Ruby and Austinite 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 Ruby and Austinite chemical formula.

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Ruby and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Austinite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 4.12 whereas that of Austinite is 4.12.

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