Celestine and Common Opal Physical Properties

Celestine

Common Opal

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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

3.90-4.001.98-2.50

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3-3.55.5-6.5

2 10

1.8 Chemical Composition

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

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Celestine and Common Opal Chemical Formula

While comparing Celestine and Common Opal 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 Common Opal chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Celestine and Common Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Celestine and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Celestine is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.