Hercynite and Liddicoatite Physical Properties

Hercynite

Liddicoatite

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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

4.393.02

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal

1.6 Cleavage

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

{0001} Poor

1.7 Mohs Hardness

7.5-8Not Available

2 10

1.8 Chemical Composition

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

Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Hercynite and Liddicoatite Chemical Formula

While comparing Hercynite and Liddicoatite 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 Liddicoatite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Liddicoatite- Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Hercynite and Liddicoatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Liddicoatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Liddicoatite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.02 whereas that of Liddicoatite is 3.02.