Liddicoatite and Iolite Physical Properties

Liddicoatite

Iolite

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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

3.022.6-2.7

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{0001} Poor

3,1

1.7 Mohs Hardness

Not Available7-7.5

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)

Mg₂Al₄Si₅O₁₈

Liddicoatite and Iolite Chemical Formula

While comparing Liddicoatite and Iolite 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 Iolite 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 Iolite- Mg₂Al₄Si₅O₁₈

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Liddicoatite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.