Anhydrite and Elbaite Physical Properties

Anhydrite

Elbaite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.982.90-3.10

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal

Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Poor/indistinct on {1120} and {1011}

Mohs Hardness

3.57

2 10

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Chemical Composition

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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

Anhydrite and Elbaite Chemical Formula

While comparing Anhydrite 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 Anhydrite and Elbaite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
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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Anhydrite and Elbaite Specific Gravity

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