Riebeckite and Elbaite Physical Properties

Riebeckite

Elbaite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.442.90-3.10

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

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

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

Poor/indistinct on {1120} and {1011}

1.7 Mohs Hardness

5.0-6.07

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Elbaite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Elbaite 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

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Riebeckite and Elbaite Specific Gravity

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