Willemite and Hematite Physical Properties

Willemite

Hematite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.89-4.18

5.00-5.30

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

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

1.6 Cleavage

{0001}, {11 2 0} imperfect

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

1.7 Mohs Hardness

5.5

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fe 2O 3Arthur Thomas , Gemstones (2009)

Willemite and Hematite Chemical Formula

While comparing Willemite 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 Willemite and Hematite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Willemite and Hematite Specific Gravity

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