Cassiterite and Annabergite Physical Properties

Cassiterite

Annabergite

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Physical Properties

Tenacity

Brittle

Sectile

Solubility

insoluble

Durability

Specific Gravity

6.86-7.033.07

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

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

Perfect on {010}, indistinct on {100} and {102}

Mohs Hardness

6-72

2 10

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Chemical Composition

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

Ni3(AsO4)2•8(H2O)

Cassiterite and Annabergite Chemical Formula

While comparing Cassiterite and Annabergite 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 Annabergite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

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Cassiterite Vs Cinnabar

Cassiterite Vs Crocoite

Cassiterite and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.07 whereas that of Annabergite is 3.07.