Elbaite and Sanidine Physical Properties

Elbaite

Sanidine

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.90-3.102.54-2.61

1 7.18

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Fracture

Uneven, Conchoidal

Uneven

Cleavage

Poor/indistinct on {1120} and {1011}

{001} Perfect, {010} Good

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

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Elbaite and Sanidine Chemical Formula

While comparing Elbaite and Sanidine 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 Sanidine 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 Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Elbaite and Sanidine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Sanidine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Sanidine Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.54-2.61 whereas that of Sanidine is 2.54-2.61.