Elbaite and Villiaumite Physical Properties

Elbaite

Villiaumite

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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

2.90-3.102.79

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

{100} Perfect, {010} Perfect, {001} Perfect

1.7 Mohs Hardness

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

NaFUlrich Henn and Claudio C.

Elbaite and Villiaumite Chemical Formula

While comparing Elbaite and Villiaumite 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 Villiaumite 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 Villiaumite- NaFUlrich Henn and Claudio C.

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Elbaite and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.79 whereas that of Villiaumite is 2.79.