Allanite and Zircon Physical Properties

Allanite

Zircon

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.40-4.203.93-4.73

1 7.18

1.5 Fracture

Not Available

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

{110} and {111}

1.7 Mohs Hardness

Not Available7.5

2 10

1.8 Chemical Composition

Not Available

ZrSiO₄

Allanite and Zircon Chemical Formula

While comparing Allanite and Zircon 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 Allanite and Zircon chemical formula.

Chemical formula of Zircon- ZrSiO₄

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Allanite and Zircon Specific Gravity

Another important criteria for qualitative analysis of gemstones is Allanite and Zircon Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Allanite and Zircon Optical Properties during the identification of gemstone. Specific gravity of Allanite is 3.93-4.73 whereas that of Zircon is 3.93-4.73.