Leucophanite and Lazurite Physical Properties

Leucophanite

Lazurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.75

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

{???} Good, {???} Good, {???} Distinct

Imperfect on {110}

1.7 Mohs Hardness

Not Available5.5

2 10

1.8 Chemical Composition

Not Available

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

Leucophanite and Lazurite Chemical Formula

While comparing Leucophanite 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 Leucophanite and Lazurite chemical formula.

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

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Leucophanite and Lazurite Specific Gravity

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