Eudialyte and Lazurite Physical Properties

Eudialyte

Lazurite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

H 2 SO 4

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-3.002.75

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

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

Imperfect on {110}

1.7 Mohs Hardness

5-5.55.5

2 10

1.8 Chemical Composition

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

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

Eudialyte and Lazurite Chemical Formula

While comparing Eudialyte and Lazurite 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 Eudialyte and Lazurite chemical formula.

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

Compare Brown Gemstones

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Eudialyte and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eudialyte and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.75 whereas that of Lazurite is 2.75.