Legrandite and Cassiterite Physical Properties

Legrandite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.98-4.046.86-7.03

1 7.18

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Fracture

Conchoidal

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Imperfect, poor one {100}

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

Mohs Hardness

4.5-56-7

2 10

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Chemical Composition

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Legrandite and Cassiterite Chemical Formula

While comparing Legrandite 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 Legrandite and Cassiterite chemical formula.

Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael 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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Legrandite and Cassiterite Specific Gravity

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