Elbaite and Variscite Physical Properties

Elbaite

Variscite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.102.42-2.58

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

[010] perfect

1.7 Mohs Hardness

74-5

2 10

1.8 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

AlPO₄ · 2(H₂O)

Elbaite and Variscite Chemical Formula

While comparing Elbaite and Variscite 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 Variscite 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 Variscite- AlPO₄ · 2(H₂O)

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Elbaite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.