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Andradite
Andradite

Dumortierite
Dumortierite



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Andradite
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Dumortierite

Andradite and Dumortierite 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)
 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18

Andradite and Dumortierite Chemical Formula

While comparing Andradite and Dumortierite 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 Dumortierite chemical formula.

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Andradite and Dumortierite Specific Gravity

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