Ruby and Sapphirine Physical Properties

Ruby

Sapphirine

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.053.40-3.58

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

{010} Perfect

1.7 Mohs Hardness

97.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ruby and Sapphirine Chemical Formula

While comparing Ruby and Sapphirine 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 Sapphirine chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Ruby and Sapphirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Sapphirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Sapphirine Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.40-3.58 whereas that of Sapphirine is 3.40-3.58.