Amethyst and Phosgenite Physical Properties

Amethyst

Phosgenite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

insoluble in common solvents

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.656.13

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Indiscernible

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

1.7 Mohs Hardness

72-3

2 10

1.8 Chemical Composition

SiO₂

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

Amethyst and Phosgenite Chemical Formula

While comparing Amethyst 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 Amethyst and Phosgenite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Amethyst and Phosgenite Specific Gravity

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