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Foitite
Foitite

Goethite
Goethite



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Foitite
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Goethite

Foitite and Goethite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.17
-
None
7
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
 
-
HCl soluble
-
4.27-4.29
Uneven
Perfect {010}
5-5.5
FeO(OH)Arthur Thomas , Gemstones (2009)

Foitite and Goethite Chemical Formula

While comparing Foitite 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 Foitite and Goethite chemical formula.

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Foitite and Goethite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Foitite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite Vs Goethite during the identification of gemstone. Specific gravity of Foitite is whereas that of Goethite is .