Moroxite and Goethite Physical Properties

Moroxite

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

3.13-3.264.27-4.29

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Not Available

Perfect {010}

1.7 Mohs Hardness

Not Available5-5.5

2 10

1.8 Chemical Composition

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

FeO(OH)Arthur Thomas , Gemstones (2009)

Moroxite and Goethite Chemical Formula

While comparing Moroxite 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 Moroxite and Goethite chemical formula.

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

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Moroxite and Goethite Specific Gravity

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