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Bustamite
Bustamite

Feldspar
Feldspar



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Bustamite
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Bustamite and Feldspar 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
 
-
-
-
2.56-2.75
Uneven, Conchoidal
two or three
6-6.5
KAlSi3O8

Bustamite and Feldspar Chemical Formula

While comparing Bustamite and Feldspar 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 Feldspar chemical formula.

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Bustamite and Feldspar Specific Gravity

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