Celestine and Sapphire Physical Properties

Celestine

Sapphire

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.003.95-4.03

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

None, but may exhibit parting

1.7 Mohs Hardness

3-3.59

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Celestine and Sapphire Chemical Formula

While comparing Celestine and Sapphire 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 Celestine and Sapphire chemical formula.

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

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Celestine and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Celestine and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Celestine is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.