Liddicoatite and Gahnite Physical Properties

Liddicoatite

Gahnite

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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

3.024.00-4.62

1 7.18

1.5 Fracture

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

Conchoidal, Uneven

1.6 Cleavage

{0001} Poor

Indistinct parting on [111]

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)

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Liddicoatite and Gahnite Chemical Formula

While comparing Liddicoatite and Gahnite 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 Gahnite 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 Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Liddicoatite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.