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Feldspar
Feldspar

Albite
Albite



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Feldspar
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Albite

Feldspar and Albite Physical Properties

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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
 
Brittle
-
-
2.60-2.65
Uneven, Conchoidal
Perfect on {001}, very good on {010}, imperfect on {110}
6-6.5
NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Feldspar and Albite Chemical Formula

While comparing Feldspar and Albite 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 Albite chemical formula.

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Feldspar and Albite Specific Gravity

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