Bustamite and Scheelite Physical Properties

Bustamite

Scheelite

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Physical Properties

Tenacity

Brittle

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.32-3.435.9-6.3

1 7.18

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Fracture

Conchoidal

Conchoidal, Uneven

Cleavage

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

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

Mohs Hardness

5.5-64.5-5

2 10

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Chemical Composition

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

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bustamite and Scheelite Chemical Formula

While comparing Bustamite and Scheelite 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 Scheelite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bustamite and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.