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Goethite
Goethite

Malachite
Malachite



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Goethite
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Malachite

Goethite and Malachite 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)
 
-
-
-
3.25-4.10
Conchoidal, Uneven
Perfect on { 2 01} fair on {010}
3.5-4
Cu2CO3(OH)2

Goethite and Malachite Chemical Formula

While comparing Goethite and Malachite 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 Malachite chemical formula.

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Goethite and Malachite Specific Gravity

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