Adularia and Elbaite Physical Properties

Adularia

Elbaite

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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

2.54-2.61

2.90-3.10

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Poor/indistinct on {1120} and {1011}

1.7 Mohs Hardness

1.8 Chemical Composition

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

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

Adularia and Elbaite Chemical Formula

While comparing Adularia 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 Adularia and Elbaite chemical formula.

Chemical formula of Adularia- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
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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Adularia and Elbaite Specific Gravity

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