Elbaite and Hematite Physical Properties

Elbaite

Hematite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-3.105.00-5.30

1 7.18

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Fracture

Uneven, Conchoidal

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

Poor/indistinct on {1120} and {1011}

None, may show partings on {0001} and {10 1 1}

Mohs Hardness

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

Fe 2O 3Arthur Thomas , Gemstones (2009)

Elbaite and Hematite Chemical Formula

While comparing Elbaite and Hematite 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 Hematite 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 Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Elbaite and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.