Anhydrite and Hematite Physical Properties

Anhydrite

Hematite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.985.00-5.30

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

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

Mohs Hardness

3.56

2 10

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Chemical Composition

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Fe 2O 3Arthur Thomas , Gemstones (2009)

Anhydrite and Hematite Chemical Formula

While comparing Anhydrite 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 Anhydrite and Hematite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Anhydrite and Hematite Specific Gravity

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