Microlite and Common Opal Physical Properties

Microlite

Common Opal

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

5.51.98-2.50

1 7.18

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Fracture

Conchoidal

Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

None

Mohs Hardness

5-5.55.5-6.5

2 10

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Chemical Composition

(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Microlite and Common Opal Chemical Formula

While comparing Microlite 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 Microlite and Common Opal chemical formula.

Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Compare Red Gemstones

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Microlite Vs Realgar

Microlite and Common Opal Specific Gravity

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