Celestine and Star Sapphire Physical Properties

Celestine

Star Sapphire

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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

3.90-4.003.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3-3.5Not Available

2 10

1.8 Chemical Composition

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

Al 2O 3Ulrich Henn and Claudio C.

Celestine and Star Sapphire Chemical Formula

While comparing Celestine and Star 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 Star Sapphire chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Celestine and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Celestine and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Celestine is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.