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Brucite
Brucite

Kyanite
Kyanite



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Brucite
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Kyanite

Brucite and Kyanite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Sectile
-
-
2.39
Irregular
Perfect on {0001}
2.5
Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Brucite and Kyanite Chemical Formula

While comparing Brucite 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 Brucite and Kyanite chemical formula.

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Brucite and Kyanite Specific Gravity

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