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Ruby
Ruby

Colemanite
Colemanite



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Ruby
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Colemanite

Ruby and Colemanite Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.97-4.052.40-2.42
1 7.18
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Fracture

Conchoidal
-

Cleavage

No true cleavage
{010} Perfect, {001} Distinct

Mohs Hardness

94.5
2 10
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Chemical Composition

Al 2 O 3
Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Ruby and Colemanite Chemical Formula

While comparing Ruby and Colemanite 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 Ruby and Colemanite chemical formula.

  • Chemical formula of Ruby- Al 2 O 3
  • Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Ruby and Colemanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.