Lazurite and Vesuvianite Physical Properties

Lazurite

Vesuvianite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Vesuvianite is virtually insolouble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.753.32-3.43

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

Imperfect on {110}

Poor on {110} and {100} very poor on {001}

1.7 Mohs Hardness

5.56-7

2 10

1.8 Chemical Composition

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

Not Available

Lazurite and Vesuvianite Chemical Formula

While comparing Lazurite and Vesuvianite 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 Vesuvianite 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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Lazurite and Vesuvianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Vesuvianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Vesuvianite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 3.32-3.43 whereas that of Vesuvianite is 3.32-3.43.