Elbaite and Sugilite Physical Properties

Elbaite

Sugilite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.10

Uneven, Conchoidal

Poor/indistinct on {1120} and {1011}

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

2.69-2.79

Conchoidal

Poor on {0001}

5.5-6.5

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Elbaite and Sugilite Chemical Formula

While comparing Elbaite and Sugilite 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 Sugilite chemical formula.

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Elbaite and Sugilite Specific Gravity

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