Lazurite and Eudialyte Physical Properties

Lazurite

Eudialyte

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

H 2 SO 4

1.3 Durability

Not Available

1.4 Specific Gravity

2.752.74-3.00

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Imperfect on {110}

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

1.7 Mohs Hardness

5.55-5.5

2 10

1.8 Chemical Composition

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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

Lazurite and Eudialyte Chemical Formula

While comparing Lazurite 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 Lazurite and Eudialyte chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Compare Blue Gemstones

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Lazurite and Eudialyte Specific Gravity

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