Elbaite and Rutile Physical Properties

Elbaite

Rutile

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Physical Properties

Tenacity

Solubility

Insoluble in acids

Durability

Specific Gravity

2.90-3.104.20-4.30

1 7.18

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Fracture

Uneven, Conchoidal

Cleavage

Poor/indistinct on {1120} and {1011}

{110} good, 100 moderate, parting on {092} and {011}

Mohs Hardness

76-6.5

2 10

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Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Elbaite and Rutile Chemical Formula

While comparing Elbaite and Rutile 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 Elbaite and Rutile chemical formula.

Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Elbaite and Rutile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Rutile Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 4.20-4.30 whereas that of Rutile is 4.20-4.30.