Sapphire and Legrandite Physical Properties

Sapphire

Legrandite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.98-4.04

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None, but may exhibit parting

Imperfect, poor one {100}

1.7 Mohs Hardness

94.5-5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sapphire and Legrandite Chemical Formula

While comparing Sapphire and Legrandite 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 Sapphire and Legrandite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sapphire and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.