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Andradite
Andradite

Sardonyx
Sardonyx



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Andradite
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Sardonyx

Andradite and Sardonyx Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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

Andradite and Sardonyx Chemical Formula

While comparing Andradite 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 Andradite and Sardonyx chemical formula.

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Andradite and Sardonyx Specific Gravity

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