Bustamite and Cassiterite Physical Properties

Bustamite

Cassiterite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Partly soluble in HCl.

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.436.86-7.03

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

5.5-66-7

2 10

1.8 Chemical Composition

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

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

Bustamite and Cassiterite Chemical Formula

While comparing Bustamite and Cassiterite 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 Cassiterite chemical formula.

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

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Bustamite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.