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Kyanite
Kyanite

Bustamite
Bustamite



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Kyanite
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Bustamite

Kyanite and Bustamite 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
 
-
Partly soluble in HCl.
-
3.32-3.43
Conchoidal
{100} perfect; {110} and {1 1 0} good; {010} poor
5.5-6
(Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Kyanite and Bustamite Chemical Formula

While comparing Kyanite and Bustamite 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 Bustamite chemical formula.

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Kyanite and Bustamite Specific Gravity

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