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Goethite
Goethite

Realgar
Realgar



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Goethite
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Realgar

Goethite and Realgar Physical Properties

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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)
 
-
-
-
3.56
-
{010} Good
-9999
AsSMichael O’Donoghue , Gems, Sixth Edition (2006)

Goethite and Realgar Chemical Formula

While comparing Goethite and Realgar 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 Realgar chemical formula.

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Goethite and Realgar Specific Gravity

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