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Bustamite
Bustamite

Quartz
Quartz



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Bustamite
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Quartz

Bustamite and Quartz Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

Partly soluble in HCl.
-

Durability

-
-

Specific Gravity

3.32-3.432.65
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

{100} perfect; {110} and {1 1 0} good; {010} poor
{0110} Indistinct

Mohs Hardness

5.5-67
2 10
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Chemical Composition

(Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
SiO2

Bustamite and Quartz Chemical Formula

While comparing Bustamite and Quartz 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 Quartz chemical formula.

  • Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Quartz- SiO2

Bustamite and Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Quartz Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2.65 whereas that of Quartz is 2.65.