Elbaite and Spinel Physical Properties

Elbaite

Spinel

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.90-3.103.64-3.66

1 7.18

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Fracture

Uneven, Conchoidal

Conchoidal, Uneven

Cleavage

Poor/indistinct on {1120} and {1011}

None, but may exhibit slight parting

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

MgAl₂O₄

Elbaite and Spinel Chemical Formula

While comparing Elbaite and Spinel 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 Spinel 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 Spinel- MgAl₂O₄

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Elbaite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.