Elbaite and Rhodolite Physical Properties

Elbaite

Rhodolite

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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

2.90-3.103.84

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

none, may show indistinct parting

1.7 Mohs Hardness

77-7.5

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

(Mg,Fe)₃Al₂Si₃O₁₂

Elbaite and Rhodolite Chemical Formula

While comparing Elbaite and Rhodolite 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 Rhodolite 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 Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Elbaite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 3.84 whereas that of Rhodolite is 3.84.