Lazurite and Muscovite Physical Properties

Lazurite

Muscovite

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1 Physical Properties

2.2 Tenacity

Brittle

Elastic

2.3 Solubility

Soluble

Not Available

2.5 Durability

Not Available

2.7 Specific Gravity

2.752.78-2.88

1 7.18

2.9 Fracture

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

Micaceous, Brittle

2.11 Cleavage

Imperfect on {110}

Perfect on the {001}

2.13 Mohs Hardness

5.52-3

2 10

2.15 Chemical Composition

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

KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Lazurite and Muscovite Chemical Formula

While comparing Lazurite and Muscovite 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 Muscovite chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Muscovite- KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Lazurite and Muscovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Muscovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Muscovite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 2.78-2.88 whereas that of Muscovite is 2.78-2.88.