Pyrargyrite and Spinel Physical Properties

Pyrargyrite

Spinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

5.853.64-3.66

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

None, but may exhibit slight parting

1.7 Mohs Hardness

2.5-38

2 10

1.8 Chemical Composition

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

MgAl₂O₄

Pyrargyrite and Spinel Chemical Formula

While comparing Pyrargyrite and Spinel 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 Spinel chemical formula.

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

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Pyrargyrite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrargyrite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrargyrite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Pyrargyrite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.