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Kyanite
Kyanite

Phenakite
Phenakite



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Kyanite
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Phenakite

Kyanite and Phenakite 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
 
Brittle
-
-
2.90-2.98
Conchoidal, ConchoidalWalter Schumann
Distinct on {11 2 0}, imperfect on {10 1 1}
7.5-8
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Kyanite and Phenakite Chemical Formula

While comparing Kyanite and Phenakite 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 Phenakite chemical formula.

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Kyanite and Phenakite Specific Gravity

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