Iolite and Azurite Physical Properties

Iolite

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

2.6-2.73.70-3.90

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

3,1

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

1.7 Mohs Hardness

7-7.53.5-4

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

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

Iolite and Azurite Chemical Formula

While comparing Iolite 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 Iolite and Azurite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Iolite and Azurite Specific Gravity

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