Phosgenite and Kyanite Physical Properties

Phosgenite

Kyanite

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.133.53-3.65

1 7.18

1.5 Fracture

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

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

2-34-7

2 10

1.8 Chemical Composition

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

Not Available

Phosgenite and Kyanite Chemical Formula

While comparing Phosgenite and Kyanite 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 Kyanite chemical formula.

Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Phosgenite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosgenite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosgenite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Phosgenite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.