Zircon and Kyanite Physical Properties

Zircon

Kyanite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.93-4.73

3.53-3.65

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Splintery, Brittle, Metallic

1.6 Cleavage

{110} and {111}

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

7.5

4-7

1.8 Chemical Composition

ZrSiO₄

Not Available

Zircon and Kyanite Chemical Formula

While comparing Zircon and Kyanite 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 Zircon and Kyanite chemical formula.

Chemical formula of Zircon- ZrSiO₄

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Zircon and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zircon and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Zircon is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.