Elbaite and Riebeckite Physical Properties

Elbaite

Riebeckite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.103.28-3.44

1 7.18

1.5 Fracture

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

Uneven, Splintery, Brittle

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

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

1.7 Mohs Hardness

75.0-6.0

2 10

1.8 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

Not Available

Elbaite and Riebeckite Chemical Formula

While comparing Elbaite and Riebeckite 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 Riebeckite 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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Elbaite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.