Verdelite and Sinhalite Physical Properties

Verdelite

Sinhalite

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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

2.90-3.403.46-3.50

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.56-7

2 10

1.8 Chemical Composition

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.

MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Verdelite and Sinhalite Chemical Formula

While comparing Verdelite and Sinhalite 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 Verdelite and Sinhalite chemical formula.

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.
Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Verdelite and Sinhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdelite and Sinhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdelite and Sinhalite Optical Properties during the identification of gemstone. Specific gravity of Verdelite is 3.46-3.50 whereas that of Sinhalite is 3.46-3.50.