Villiaumite and Verdelite Physical Properties

Villiaumite

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

2.792.90-3.40

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

{100} Perfect, {010} Perfect, {001} Perfect

Not Available

1.7 Mohs Hardness

27-7.5

2 10

1.8 Chemical Composition

NaFUlrich Henn and Claudio C.

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.

Villiaumite and Verdelite Chemical Formula

While comparing Villiaumite 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 Villiaumite and Verdelite chemical formula.

Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.
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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Villiaumite and Verdelite Specific Gravity

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