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Andradite
Andradite

Feldspar
Feldspar



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Andradite
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Andradite and Feldspar 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)
 
-
-
-
2.56-2.75
Uneven, Conchoidal
two or three
6-6.5
KAlSi3O8

Andradite and Feldspar Chemical Formula

While comparing Andradite and Feldspar 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 Feldspar chemical formula.

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Andradite and Feldspar Specific Gravity

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