Elbaite and Coral Physical Properties

Elbaite

Coral

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.10

2.60-2.70

1.5 Fracture

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

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

Not Available

1.7 Mohs Hardness

3-4

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

CaCO 3Ulrich Henn and Claudio C.

Elbaite and Coral Chemical Formula

While comparing Elbaite and Coral 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 Coral 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 Coral- CaCO 3Ulrich Henn and Claudio C.

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Elbaite and Coral Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Coral Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Coral Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.60-2.70 whereas that of Coral is 2.60-2.70.