Faustite and Pyrargyrite Physical Properties

Faustite

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

2.95.85

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

1.6 Cleavage

{???} Indistinct

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

1.7 Mohs Hardness

4.52.5-3

2 10

1.8 Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Faustite and Pyrargyrite Chemical Formula

While comparing Faustite 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 Faustite and Pyrargyrite chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael 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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Faustite and Pyrargyrite Specific Gravity

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