Legrandite and Hematite Physical Properties

Legrandite

Hematite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.98-4.045.00-5.30

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

Imperfect, poor one {100}

None, may show partings on {0001} and {10 1 1}

Mohs Hardness

4.5-56

2 10

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Chemical Composition

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

Fe 2O 3Arthur Thomas , Gemstones (2009)

Legrandite and Hematite Chemical Formula

While comparing Legrandite and Hematite 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 Legrandite and Hematite chemical formula.

Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Legrandite and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.