Diaspore and Hematite Physical Properties

Diaspore

Hematite

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Physical Properties

Tenacity

Very brittle

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.30-3.405.00-5.30

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

{010} perfect, {110} distinct, {100} in traces

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

Mohs Hardness

6.5-76

2 10

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Chemical Composition

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Fe 2O 3Arthur Thomas , Gemstones (2009)

Diaspore and Hematite Chemical Formula

While comparing Diaspore 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 Diaspore and Hematite chemical formula.

Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Diaspore and Hematite Specific Gravity

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