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Goethite
Goethite

Nuummite
Nuummite



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Goethite
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Nuummite

Goethite and Nuummite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
HCl soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.27-4.293.18-3.37
Amber
1 7.18
1.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Conchoidal
1.6 Cleavage
Perfect {010}
Perfect on 210
1.7 Mohs Hardness
5-5.55.5-6
Amber
2 10
1.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
Not Available

Goethite and Nuummite Chemical Formula

While comparing Goethite and Nuummite 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 Nuummite chemical formula.

  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
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Goethite and Nuummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.