Pyrargyrite and Crystal Opal Physical Properties

Pyrargyrite

Crystal Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.851.97-2.22

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct on {10 1 1}, imperfect on {01 1 2}

Not Available

1.7 Mohs Hardness

2.5-35.5-6.5

2 10

1.8 Chemical Composition

Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 + H 2OUlrich Henn and Claudio C.

Pyrargyrite and Crystal Opal Chemical Formula

While comparing Pyrargyrite and Crystal Opal 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 Pyrargyrite and Crystal Opal chemical formula.

Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Pyrargyrite and Crystal Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrargyrite and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrargyrite and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Pyrargyrite is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.