Emerald and Cassiterite Physical Properties

Emerald

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Hard

Specific Gravity

2.67-2.786.86-7.03

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Imperfect on the [0001]

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

Mohs Hardness

7.5-86-7

2 10

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Chemical Composition

Be₃Al₂SiO₆

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

Emerald and Cassiterite Chemical Formula

While comparing Emerald 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 Emerald and Cassiterite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Emerald and Cassiterite Specific Gravity

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