Ruby and Celestine Physical Properties

Ruby

Celestine

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.053.90-4.00

1 7.18

1.5 Fracture

Conchoidal

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

No true cleavage

Perfect on {001}, good on {210}, poor on {010}

1.7 Mohs Hardness

93-3.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ruby and Celestine Chemical Formula

While comparing Ruby and Celestine 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 Celestine chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Ruby and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Celestine Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.90-4.00 whereas that of Celestine is 3.90-4.00.