Fluorite and Hercynite Physical Properties

Fluorite

Hercynite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

slightly water soluble and in hot hydrochloric acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.00-3.254.39

1 7.18

1.5 Fracture

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

ConchoidalGemdat.org, Uneven

1.6 Cleavage

Octahedral, perfect on {111}, parting on {011}

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

1.7 Mohs Hardness

47.5-8

2 10

1.8 Chemical Composition

CaF₂

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

Fluorite and Hercynite Chemical Formula

While comparing Fluorite 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 Fluorite and Hercynite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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Fluorite and Hercynite Specific Gravity

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