Cassiterite and Ruby Physical Properties

Cassiterite

Ruby

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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

6.86-7.033.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

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

No true cleavage

1.7 Mohs Hardness

6-79

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Cassiterite and Ruby Chemical Formula

While comparing Cassiterite and Ruby 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 Ruby chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ruby- Al ₂ O ₃

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Cassiterite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.