Phosgenite and Afghanite Physical Properties

Phosgenite

Afghanite

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Physical Properties

Tenacity

Sectile

Solubility

Soluble

Durability

Specific Gravity

6.132.55-2.65

1 7.18

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Fracture

Conchoidal

Cleavage

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

Perfect {10 1 0}

Mohs Hardness

2-35.5-6

2 10

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Chemical Composition

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

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Phosgenite and Afghanite Chemical Formula

While comparing Phosgenite and Afghanite 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 Phosgenite and Afghanite chemical formula.

Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

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Phosgenite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosgenite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosgenite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Phosgenite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.