Zircon and Sunstone Physical Properties

Zircon

Sunstone

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.93-4.732.62-2.65

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Gemstones of the world (2001)

1.6 Cleavage

{110} and {111}

001

1.7 Mohs Hardness

7.56

2 10

1.8 Chemical Composition

ZrSiO₄

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Zircon and Sunstone Chemical Formula

While comparing Zircon and Sunstone 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 Sunstone chemical formula.

Chemical formula of Zircon- ZrSiO₄
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Zircon and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zircon and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Zircon is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.