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Feldspar
Feldspar

Grossular
Grossular



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Feldspar
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Grossular

Feldspar and Grossular 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
 
-
-
-
3.55-3.73
Conchoidal, Uneven
none
7-7.5
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Feldspar and Grossular Chemical Formula

While comparing Feldspar and Grossular 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 Grossular chemical formula.

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Feldspar and Grossular Specific Gravity

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