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Kyanite and Brucite Physical Properties


Brucite and Kyanite Physical Properties


Physical Properties

Tenacity
Brittle   
Sectile   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.53-3.65   
2.39   

Fracture
Splintery, Brittle, Metallic   
Irregular   

Cleavage
[100] perfect [010] imperfect with 79° angle between   
Perfect on {0001}   

Mohs Hardness
4-7   
2.5   

Chemical Composition
Not Available   
Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Kyanite and Brucite Chemical Formula

While comparing Kyanite and Brucite 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 Brucite chemical formula.

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Kyanite and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.39 whereas that of Brucite is 2.39.

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