Lazurite and Jade Physical Properties

Lazurite

Jade

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.752.90-3.38

1 7.18

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Fracture

Uneven, Conchoidal

Splintery

Cleavage

Imperfect on {110}

1 or 2,2 prismatic.

Mohs Hardness

5.56-7

2 10

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Chemical Composition

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

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

Lazurite and Jade Chemical Formula

While comparing Lazurite and Jade 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 Jade chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Lazurite and Jade Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Jade Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 2.90-3.38 whereas that of Jade is 2.90-3.38.