Goethite and Narsarsukite Physical Properties

Goethite

Narsarsukite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

HCl soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.27-4.292.72-2.83

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect {010}

Good on {100} and {110}

1.7 Mohs Hardness

5-5.56-7

2 10

1.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

Goethite and Narsarsukite Chemical Formula

While comparing Goethite and Narsarsukite 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 Narsarsukite chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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Goethite and Narsarsukite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Narsarsukite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Narsarsukite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.72-2.83 whereas that of Narsarsukite is 2.72-2.83.