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Kyanite
Kyanite

Topaz
Topaz



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Kyanite
X
Topaz

Kyanite and Topaz 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
 
-
-
-
3.49-3.57
Subconchoidal, Uneven, Conchoidal
[001] Perfect
8
Al2SiO4(F,OH)2

Kyanite and Topaz Chemical Formula

While comparing Kyanite and Topaz 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 Topaz chemical formula.

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Kyanite and Topaz Specific Gravity

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