Lazurite and Pyrrhotite Physical Properties

Lazurite

Pyrrhotite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.754.58-4.65

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

Imperfect on {110}

Absent

1.7 Mohs Hardness

5.53.5-4.5

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 Pyrrhotite Chemical Formula

While comparing Lazurite and Pyrrhotite 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 Pyrrhotite 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 Pyrrhotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Pyrrhotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Pyrrhotite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 4.58-4.65 whereas that of Pyrrhotite is 4.58-4.65.