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Lazurite
Lazurite

Kyanite
Kyanite



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Lazurite
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Kyanite

Lazurite and Kyanite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.75
Uneven, Conchoidal
Imperfect on {110}
5.5
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Lazurite and Kyanite Chemical Formula

While comparing Lazurite and Kyanite 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 Lazurite and Kyanite chemical formula.

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Lazurite and Kyanite Specific Gravity

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