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Apophyllite KF
Apophyllite KF

Goethite
Goethite



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Apophyllite KF
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Goethite

Apophyllite KF and Goethite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.33-2.37
Uneven
Perfect on {001}, imperfect on {110}
4.5-5
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
 
-
HCl soluble
-
4.27-4.29
Uneven
Perfect {010}
5-5.5
FeO(OH)Arthur Thomas , Gemstones (2009)

Apophyllite KF and Goethite Chemical Formula

While comparing Apophyllite KF 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 Apophyllite KF and Goethite chemical formula.

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Apophyllite KF and Goethite Specific Gravity

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