Labradorite and Pyrargyrite Physical Properties

Labradorite

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

2.69-2.725.85

1 7.18

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

1.6 Cleavage

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

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

1.7 Mohs Hardness

6-6.52.5-3

2 10

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

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

Labradorite and Pyrargyrite Chemical Formula

While comparing Labradorite 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 Labradorite and Pyrargyrite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Labradorite and Pyrargyrite Specific Gravity

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