Hercynite and Chlorapatite Physical Properties

Hercynite

Chlorapatite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.393.17-3.18

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

7.5-8Not Available

2 10

1.8 Chemical Composition

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

Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)

Hercynite and Chlorapatite Chemical Formula

While comparing Hercynite and Chlorapatite 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 Chlorapatite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Chlorapatite- Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)

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Hercynite and Chlorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Chlorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Chlorapatite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.17-3.18 whereas that of Chlorapatite is 3.17-3.18.