Hercynite and Anthophyllite Physical Properties

Hercynite

Anthophyllite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.392.9-3.5

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

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

{110} Perfect, {???} Distinct, {???} Distinct

Mohs Hardness

7.5-85.5-6

2 10

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Chemical Composition

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

(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Hercynite and Anthophyllite Chemical Formula

While comparing Hercynite and Anthophyllite 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 Anthophyllite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Hercynite and Anthophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Anthophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Anthophyllite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.9-3.5 whereas that of Anthophyllite is 2.9-3.5.