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Andradite
Andradite

Erythrite
Erythrite



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Andradite
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Erythrite

Andradite and Erythrite 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)
 
Sectile
-
-
3.06
Sectile
Perfect on {010}; poor on {100} and { 1 02}.
-9999
Co3(AsO4)2•8(H2O)

Andradite and Erythrite Chemical Formula

While comparing Andradite and Erythrite 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 Erythrite chemical formula.

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Andradite and Erythrite Specific Gravity

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