Liddicoatite and Cordierite Physical Properties

Liddicoatite

Cordierite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.02

2.57-2.66

1.5 Fracture

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

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

{0001} Poor

Fair on {100}, poor on {001} and {010}

1.7 Mohs Hardness

Not Available

7-7.5

1.8 Chemical Composition

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

Mg2Al4Si5O18

Liddicoatite and Cordierite Chemical Formula

While comparing Liddicoatite and Cordierite 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 Cordierite 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 Cordierite- Mg2Al4Si5O18

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Liddicoatite and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.