Goethite and Cassiterite Physical Properties

Goethite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

HCl soluble

insoluble

Durability

Specific Gravity

4.27-4.296.86-7.03

1 7.18

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Fracture

Uneven

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Perfect {010}

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

Mohs Hardness

5-5.56-7

2 10

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Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

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

Goethite and Cassiterite Chemical Formula

While comparing Goethite 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 Goethite and Cassiterite chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

Goethite Vs Manganaxinite

Goethite Vs Mellite

Goethite Vs Povondraite

Goethite and Cassiterite Specific Gravity

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