Goethite and Moroxite Physical Properties

Goethite

Moroxite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

HCl soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.27-4.293.13-3.26

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {010}

Not Available

1.7 Mohs Hardness

5-5.5Not Available

2 10

1.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)

Goethite and Moroxite Chemical Formula

While comparing Goethite and Moroxite 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 Goethite and Moroxite chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Moroxite- Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)

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Goethite and Moroxite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Moroxite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Moroxite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 3.13-3.26 whereas that of Moroxite is 3.13-3.26.