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Kyanite
Kyanite

Phosgenite
Phosgenite



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Kyanite
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Phosgenite

Kyanite and Phosgenite Physical Properties

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
 
Sectile
Soluble
-
6.13
Conchoidal
Distinct on {001} and {110}, indistinct on {100}
2-3
Pb 2(CO 3)Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Kyanite and Phosgenite Chemical Formula

While comparing Kyanite and Phosgenite 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 Phosgenite chemical formula.

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Kyanite and Phosgenite Specific Gravity

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