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Feldspar
Feldspar

Almandine
Almandine



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Feldspar
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Almandine

Feldspar and Almandine Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.56-2.75
Uneven, Conchoidal
two or three
6-6.5
KAlSi3O8
 
-
-
-
3.95-4.30
Conchoidal
none
7-7.5
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Feldspar and Almandine Chemical Formula

While comparing Feldspar and Almandine 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 Feldspar and Almandine chemical formula.

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Feldspar and Almandine Specific Gravity

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