Cassiterite and Bustamite Physical Properties

Cassiterite

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.033.32-3.43

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

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

1.6 Cleavage

{100} imperfect, {110} indistinct; partings on {111} or {011}

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

1.7 Mohs Hardness

6-75.5-6

2 10

1.8 Chemical Composition

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Cassiterite and Bustamite Chemical Formula

While comparing Cassiterite 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 Cassiterite and Bustamite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cassiterite and Bustamite Specific Gravity

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