Verdelite and Falcons Eye Physical Properties

Verdelite

Falcons Eye

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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

2.90-3.402.58-2.64

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.57

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.

SiO 2Walter Schumann , Gemstones of the world (2001)

Verdelite and Falcons Eye Chemical Formula

While comparing Verdelite and Falcons Eye 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 Falcons Eye 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 Falcons Eye- SiO 2Walter Schumann , Gemstones of the world (2001)

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Verdelite and Falcons Eye Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdelite and Falcons Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdelite and Falcons Eye Optical Properties during the identification of gemstone. Specific gravity of Verdelite is 2.58-2.64 whereas that of Falcons Eye is 2.58-2.64.