Tanzanite and Azurite Physical Properties

Tanzanite

Azurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.353.70-3.90

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Perfect {010}, imperfect {100}

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

1.7 Mohs Hardness

6.5-73.5-4

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Tanzanite and Azurite Chemical Formula

While comparing Tanzanite 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 Tanzanite and Azurite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Semi Precious Gemstones

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Tanzanite and Azurite Specific Gravity

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