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Goethite
Goethite

Dumortierite
Dumortierite



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Goethite
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Dumortierite

Goethite and Dumortierite 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)
 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18

Goethite and Dumortierite Chemical Formula

While comparing Goethite and Dumortierite 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 Dumortierite chemical formula.

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Goethite and Dumortierite Specific Gravity

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