Hematite and Hercynite Physical Properties

Hematite

Hercynite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.304.39

1 7.18

1.5 Fracture

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

ConchoidalGemdat.org, Uneven

1.6 Cleavage

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

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

1.7 Mohs Hardness

67.5-8

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

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

Hematite and Hercynite Chemical Formula

While comparing Hematite and Hercynite 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 Hercynite chemical formula.

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

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Hematite and Hercynite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 4.39 whereas that of Hercynite is 4.39.