Elbaite and Eudialyte Physical Properties

Elbaite

Eudialyte

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Physical Properties

Tenacity

Brittle

Solubility

H₂SO₄

Durability

Specific Gravity

2.90-3.102.74-3.00

1 7.18

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Fracture

Uneven, Conchoidal

Uneven

Cleavage

Poor/indistinct on {1120} and {1011}

Distinct on {0001} imperfect on {11 2 0}

Mohs Hardness

75-5.5

2 10

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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

Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Elbaite and Eudialyte Chemical Formula

While comparing Elbaite and Eudialyte 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 Eudialyte 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 Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

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Elbaite and Eudialyte Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Eudialyte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Eudialyte Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.74-3.00 whereas that of Eudialyte is 2.74-3.00.