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Ajoite and Goethite Physical Properties


Goethite and Ajoite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Decomposed by acids   
HCl soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.96   
4.27-4.29   

Fracture
Not Available   
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).   

Cleavage
Perfect on {010}   
Perfect {010}   

Mohs Hardness
5   
5-5.5   

Chemical Composition
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)   
FeO(OH)Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Ajoite and Goethite Chemical Formula

While comparing Ajoite 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 Ajoite and Goethite chemical formula.

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Ajoite and Goethite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ajoite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ajoite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Ajoite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.

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