Lazulite and Pyrargyrite Physical Properties

Lazulite

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

3.04-3.175.85

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

1.6 Cleavage

{001} Indistinct, {???} Indistinct

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

1.7 Mohs Hardness

5.52.5-3

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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

Lazulite and Pyrargyrite Chemical Formula

While comparing Lazulite 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 Lazulite and Pyrargyrite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lazulite and Pyrargyrite Specific Gravity

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