Wulfenite and Bustamite Physical Properties

Wulfenite

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

6.50-7.003.32-3.43

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

On {011}, distinct; on {001}, {013}, indistinct

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

1.7 Mohs Hardness

35.5-6

2 10

1.8 Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

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

Wulfenite and Bustamite Chemical Formula

While comparing Wulfenite and Bustamite 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 Wulfenite and Bustamite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Wulfenite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.