Liddicoatite and Hercynite Physical Properties

Liddicoatite

Hercynite

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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

3.024.39

1 7.18

1.5 Fracture

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

ConchoidalGemdat.org, Uneven

1.6 Cleavage

{0001} Poor

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

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

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

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

Liddicoatite and Hercynite Chemical Formula

While comparing Liddicoatite 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 Liddicoatite and Hercynite chemical formula.

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

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Liddicoatite and Hercynite Specific Gravity

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