White Opal and Oligoclase Physical Properties

White Opal

Oligoclase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.502.62-2.67

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

Not Available

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

5.5-6.56-6.5

2 10

1.8 Chemical Composition

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

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

White Opal and Oligoclase Chemical Formula

While comparing White Opal and Oligoclase 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 White Opal and Oligoclase chemical formula.

Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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White Opal Vs Iolite

White Opal Vs Idocrase

White Opal and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is White Opal and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of White Opal is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.