Lazurite and Leucite Physical Properties

Lazurite

Leucite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.752.45-2.50

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Imperfect on {110}

Poor on {110}

1.7 Mohs Hardness

5.55.5-6

2 10

1.8 Chemical Composition

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

KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lazurite and Leucite Chemical Formula

While comparing Lazurite and Leucite 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 Leucite chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lazurite and Leucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Leucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Leucite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 2.45-2.50 whereas that of Leucite is 2.45-2.50.