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Brucite
Brucite

Cordierite
Cordierite



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Brucite
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Cordierite

Brucite and Cordierite Physical Properties

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
-
-
2.57-2.66
Subconchoidal, Conchoidal
Fair on {100}, poor on {001} and {010}
7-7.5
Mg2Al4Si5O18

Brucite and Cordierite Chemical Formula

While comparing Brucite and Cordierite 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 Cordierite chemical formula.

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Brucite and Cordierite Specific Gravity

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