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Goethite
Goethite

Riebeckite
Riebeckite



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Goethite
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Riebeckite

Goethite and Riebeckite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
HCl soluble
-
4.27-4.29
Uneven
Perfect {010}
5-5.5
FeO(OH)Arthur Thomas , Gemstones (2009)
 
Brittle
-
-
3.28-3.44
Uneven, Splintery
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
5.0-6.0
Na2Fe2+3Fe3+2Si8O22(OH)2

Goethite and Riebeckite Chemical Formula

While comparing Goethite and Riebeckite 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 Riebeckite chemical formula.

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Goethite and Riebeckite Specific Gravity

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