Hemimorphite and Hematite Physical Properties

Hemimorphite

Hematite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

3.30-3.505.00-5.30

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

Perfect on {110}, poor on {101}, {001} rare

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

Mohs Hardness

2 10

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Chemical Composition

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fe 2O 3Arthur Thomas , Gemstones (2009)

Hemimorphite and Hematite Chemical Formula

While comparing Hemimorphite 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 Hemimorphite and Hematite chemical formula.

Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Hemimorphite Vs Ludlamite

Hemimorphite and Hematite Specific Gravity

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