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Bustamite
Bustamite

Cordierite
Cordierite



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Bustamite
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Cordierite

Bustamite and Cordierite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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

Bustamite and Cordierite Chemical Formula

While comparing Bustamite 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 Bustamite and Cordierite chemical formula.

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Bustamite and Cordierite Specific Gravity

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