Cassiterite and Diaspore Physical Properties

Cassiterite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.033.30-3.40

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

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

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

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

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Cassiterite and Diaspore Chemical Formula

While comparing Cassiterite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Cassiterite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.