Hercynite and Hematite Physical Properties

Hercynite

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

4.395.00-5.30

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

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

1.6 Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

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

1.7 Mohs Hardness

7.5-86

2 10

1.8 Chemical Composition

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

Fe 2O 3Arthur Thomas , Gemstones (2009)

Hercynite and Hematite Chemical Formula

While comparing Hercynite 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 Hercynite and Hematite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Hercynite and Hematite Specific Gravity

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