Narsarsukite and Goethite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
2.72-2.83
4.27-4.29
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
Good on {100} and {110}
Perfect {010}
Chemical Composition
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
FeO(OH)Arthur Thomas , Gemstones (2009)
Narsarsukite and Goethite Chemical Formula
While comparing Narsarsukite 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 Narsarsukite and Goethite chemical formula.
- Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Narsarsukite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Narsarsukite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Narsarsukite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Narsarsukite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.