Hercynite and Scheelite Physical Properties

Hercynite

Scheelite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.395.9-6.3

1 7.18

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Fracture

Uneven

Conchoidal, Uneven

Cleavage

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

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

Mohs Hardness

7.5-84.5-5

2 10

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Chemical Composition

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

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

Hercynite and Scheelite Chemical Formula

While comparing Hercynite and Scheelite 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 Scheelite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hercynite and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.