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Sardonyx and Austinite Physical Properties


Austinite and Sardonyx Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Easily soluble in cold dilute HCl   

Durability
Not Available   
Not Available   

Specific Gravity
2.55-2.70   
4.12   

Fracture
Not Available   
Brittle, Uneven, Brittle, Uneven   

Cleavage
Not Available   
Good in two directions parallel to the prism faces {110}   

Mohs Hardness
6.5-7   
4-4.5   

Chemical Composition
SiO 2Ulrich Henn and Claudio C.   
CaZn(AsO4)(OH)   

Optical Properties >>
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Sardonyx and Austinite Chemical Formula

While comparing Sardonyx 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 Sardonyx and Austinite chemical formula.

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Sardonyx and Austinite Specific Gravity

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

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