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Sardonyx
Sardonyx

Andradite
Andradite



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Sardonyx
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Andradite

Sardonyx and Andradite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.
 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Sardonyx and Andradite Chemical Formula

While comparing Sardonyx and Andradite 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 Andradite chemical formula.

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Sardonyx and Andradite Specific Gravity

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