Pyrargyrite and Dumortierite Physical Properties

Pyrargyrite

Dumortierite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.853.26-3.41

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

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

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

2.5-37-8.5

2 10

1.8 Chemical Composition

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

AlAl₆O₃BSi₃O₁₈

Pyrargyrite and Dumortierite Chemical Formula

While comparing Pyrargyrite and Dumortierite 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 Dumortierite chemical formula.

Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Pyrargyrite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrargyrite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrargyrite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Pyrargyrite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.