Spinel and Pyrargyrite Physical Properties

Spinel

Pyrargyrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.665.85

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

1.6 Cleavage

None, but may exhibit slight parting

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

1.7 Mohs Hardness

82.5-3

2 10

1.8 Chemical Composition

MgAl₂O₄

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

Spinel and Pyrargyrite Chemical Formula

While comparing Spinel 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 Spinel and Pyrargyrite chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Scorpio

Spinel Vs Azurmalachite

Spinel Vs Charoite

Spinel Vs Ametrine

Spinel and Pyrargyrite Specific Gravity

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