Hematite and Legrandite Physical Properties

Hematite

Legrandite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.303.98-4.04

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

Imperfect, poor one {100}

1.7 Mohs Hardness

64.5-5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

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

Hematite and Legrandite Chemical Formula

While comparing Hematite 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 Hematite and Legrandite chemical formula.

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

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Hematite and Legrandite Specific Gravity

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