Azurite and Apophyllite KF Physical Properties

Azurite

Apophyllite KF

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-3.902.33-2.37

1 7.18

1.5 Fracture

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

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

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

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

3.5-44.5-5

2 10

1.8 Chemical Composition

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

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Azurite and Apophyllite KF Chemical Formula

While comparing Azurite and Apophyllite KF 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 Azurite and Apophyllite KF chemical formula.

Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Azurite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Azurite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.