White Opal and Verdelite Physical Properties

White Opal

Verdelite

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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

1.98-2.502.90-3.40

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

1.7 Mohs Hardness

5.5-6.57-7.5

2 10

1.8 Chemical Composition

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

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

White Opal and Verdelite Chemical Formula

While comparing White Opal and Verdelite 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 Verdelite chemical formula.

Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Verdelite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

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White Opal and Verdelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is White Opal and Verdelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Verdelite Optical Properties during the identification of gemstone. Specific gravity of White Opal is 2.90-3.40 whereas that of Verdelite is 2.90-3.40.