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Goethite
Goethite

Cryolite
Cryolite



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Goethite
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Cryolite

Goethite and Cryolite 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)
 
Brittle
Soluble
-
2.97
Uneven
None observed
2.5
Na 3AlF 6Ulrich Henn and Claudio C.

Goethite and Cryolite Chemical Formula

While comparing Goethite and Cryolite 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 Cryolite chemical formula.

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Goethite and Cryolite Specific Gravity

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