Leucite and Common Opal Physical Properties

Leucite

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

2.45-2.501.98-2.50

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

Poor on {110}

Not Available

1.7 Mohs Hardness

5.5-65.5-6.5

2 10

1.8 Chemical Composition

KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Leucite and Common Opal Chemical Formula

While comparing Leucite 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 Leucite and Common Opal chemical formula.

Chemical formula of Leucite- KAlSi 2O 6Michael 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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Leucite and Common Opal Specific Gravity

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