Lazurite and Phosgenite Physical Properties

Lazurite

Phosgenite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.756.13

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

1.6 Cleavage

Imperfect on {110}

Distinct on {001} and {110}, indistinct on {100}

1.7 Mohs Hardness

5.52-3

2 10

1.8 Chemical Composition

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

Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lazurite and Phosgenite Chemical Formula

While comparing Lazurite and Phosgenite 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 Phosgenite chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lazurite and Phosgenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Phosgenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Phosgenite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 6.13 whereas that of Phosgenite is 6.13.