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Amethyst
Amethyst

Sardonyx
Sardonyx



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Amethyst
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Sardonyx

Amethyst and Sardonyx Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2
 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Amethyst and Sardonyx Chemical Formula

While comparing Amethyst and Sardonyx 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 Amethyst and Sardonyx chemical formula.

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Amethyst and Sardonyx Specific Gravity

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