Dumortierite and Azurite Physical Properties

Dumortierite

Azurite

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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

3.26-3.413.70-3.90

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

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

Perfect on {011}, fair on {100}, poor on {110}

1.7 Mohs Hardness

7-8.53.5-4

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Dumortierite and Azurite Chemical Formula

While comparing Dumortierite and Azurite 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 Dumortierite and Azurite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Dumortierite and Azurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Azurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Azurite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 3.70-3.90 whereas that of Azurite is 3.70-3.90.