Elbaite and Annabergite Physical Properties

Elbaite

Annabergite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.10

3.07

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

Perfect on {010}, indistinct on {100} and {102}

1.7 Mohs Hardness

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

Ni3(AsO4)2•8(H2O)

Elbaite and Annabergite Chemical Formula

While comparing Elbaite and Annabergite 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 Annabergite 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
Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

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Elbaite and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 3.07 whereas that of Annabergite is 3.07.

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