Opal and Serendibite Physical Properties

Opal

Serendibite

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1 Physical Properties

1.1 Tenacity

BrittleWalter Schumann

Not Available

1.2 Solubility

hot salt water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.253.43-3.44

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

None Observed

1.7 Mohs Hardness

5-6.56.5-7

2 10

1.8 Chemical Composition

SiO₂ · nH₂O

Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Opal and Serendibite Chemical Formula

While comparing Opal and Serendibite 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 Opal and Serendibite chemical formula.

Chemical formula of Opal- SiO₂ · nH₂O
Chemical formula of Serendibite- Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Semi Precious Gemstones

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Opal Vs Amethyst

Opal Vs Lehsunia

Opal and Serendibite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Serendibite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Serendibite Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.43-3.44 whereas that of Serendibite is 3.43-3.44.