Cassiterite and Sard Physical Properties

Cassiterite

Sard

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.032.58-2.63

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Conchoidal

Cleavage

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

None

Mohs Hardness

6-76.5-7

2 10

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Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Cassiterite and Sard Chemical Formula

While comparing Cassiterite and Sard 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 Sard chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.

Compare Red Gemstones

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Cassiterite Vs Cinnabar

Cassiterite Vs Crocoite

Cassiterite and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Sard Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.58-2.63 whereas that of Sard is 2.58-2.63.