Hematite and Diaspore Physical Properties

Hematite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.303.30-3.40

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

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

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

1.7 Mohs Hardness

66.5-7

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

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

Hematite and Diaspore Chemical Formula

While comparing Hematite and Diaspore 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 Hematite and Diaspore chemical formula.

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

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Hematite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Hematite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.