Chlorite group and Lazurite Physical Properties

Chlorite group

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

2.6-3.32.75

1 7.18

1.5 Fracture

Lamellar

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

1.6 Cleavage

Perfect 001

Imperfect on {110}

1.7 Mohs Hardness

2-2.55.5

2 10

1.8 Chemical Composition

Not Available

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

Chlorite group and Lazurite Chemical Formula

While comparing Chlorite group 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 Chlorite group and Lazurite 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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Chlorite group and Lazurite Specific Gravity

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