Liddicoatite and Goethite Physical Properties

Liddicoatite

Goethite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.024.27-4.29

1 7.18

1.5 Fracture

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

Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).

1.6 Cleavage

{0001} Poor

Perfect {010}

1.7 Mohs Hardness

Not Available5-5.5

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)

FeO(OH)Arthur Thomas , Gemstones (2009)

Liddicoatite and Goethite Chemical Formula

While comparing Liddicoatite and Goethite 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 Goethite 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 Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

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Liddicoatite and Goethite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.