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Sard
Sard

Andradite
Andradite



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Sard
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Andradite

Sard and Andradite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.58-2.63
Conchoidal
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)

Sard and Andradite Chemical Formula

While comparing Sard 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 Sard and Andradite chemical formula.

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Sard and Andradite Specific Gravity

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