Fayalite and Pyrargyrite Physical Properties

Fayalite

Pyrargyrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.3925.85

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

1.6 Cleavage

{010} moderate, {100} imperfect

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

1.7 Mohs Hardness

6.5-72.5-3

2 10

1.8 Chemical Composition

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Fayalite and Pyrargyrite Chemical Formula

While comparing Fayalite and Pyrargyrite 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 Fayalite and Pyrargyrite chemical formula.

Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Fayalite and Pyrargyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Pyrargyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Pyrargyrite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 5.85 whereas that of Pyrargyrite is 5.85.