Datolite and Hematite Physical Properties

Datolite

Hematite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-3.005.00-5.30

1 7.18

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Fracture

Conchoidal, Uneven

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

None

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

Mohs Hardness

5-5.56

2 10

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Chemical Composition

CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fe 2O 3Arthur Thomas , Gemstones (2009)

Datolite and Hematite Chemical Formula

While comparing Datolite 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 Datolite and Hematite chemical formula.

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

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Datolite Vs Feldspar

Datolite and Hematite Specific Gravity

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