Cassiterite and Legrandite Physical Properties

Cassiterite

Legrandite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.033.98-4.04

1 7.18

1.5 Fracture

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

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

Imperfect, poor one {100}

1.7 Mohs Hardness

6-74.5-5

2 10

1.8 Chemical Composition

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

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

Cassiterite and Legrandite Chemical Formula

While comparing Cassiterite and Legrandite 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 Legrandite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cassiterite and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.