Elbaite and Hackmanite Physical Properties

Elbaite

Hackmanite

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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

2.27-2.33

Perfect

5.5-6

Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Elbaite and Hackmanite Chemical Formula

While comparing Elbaite and Hackmanite 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 Hackmanite chemical formula.

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Elbaite and Hackmanite Specific Gravity

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