Elbaite and Carnallite Physical Properties

Elbaite

Carnallite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.101.6

1 7.18

1.5 Fracture

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

Violet, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

None

1.7 Mohs Hardness

72.5

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

KMgCl3•6(H2O)

Elbaite and Carnallite Chemical Formula

While comparing Elbaite and Carnallite 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 Carnallite 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 Carnallite- KMgCl3•6(H2O)

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Elbaite and Carnallite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Carnallite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Carnallite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 1.6 whereas that of Carnallite is 1.6.