Jade and Elbaite Physical Properties

Jade

Elbaite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.90-3.382.90-3.10

1 7.18

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Fracture

Splintery

Uneven, Conchoidal

Cleavage

1 or 2,2 prismatic.

Poor/indistinct on {1120} and {1011}

Mohs Hardness

6-77

2 10

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Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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

Jade and Elbaite Chemical Formula

While comparing Jade and Elbaite 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 Jade and Elbaite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
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

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Jade and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.