Vesuvianite Idocrase and Lazurite Physical Properties

Vesuvianite Idocrase

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

3.25-3.502.75

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

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

1.6 Cleavage

Not Available

Imperfect on {110}

1.7 Mohs Hardness

Not Available5.5

2 10

1.8 Chemical Composition

Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.

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

Vesuvianite Idocrase and Lazurite Chemical Formula

While comparing Vesuvianite Idocrase 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 Vesuvianite Idocrase and Lazurite chemical formula.

Chemical formula of Vesuvianite Idocrase- Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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Vesuvianite Idocrase and Lazurite Specific Gravity

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