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Kyanite
Kyanite

Variscite
Variscite



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Kyanite
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Variscite

Kyanite and Variscite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5
 
-
-
-
2.42-2.58
Conchoidal, Splintery, ConchoidalWalter Schumann
[010] perfect
4-5
AlPO4 · 2(H2O)

Kyanite and Variscite Chemical Formula

While comparing Kyanite and Variscite 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 Kyanite and Variscite chemical formula.

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Kyanite and Variscite Specific Gravity

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