Adularia and Goethite Physical Properties

Adularia

Goethite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.54-2.61

4.27-4.29

1.5 Fracture

Not Available

Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).

1.6 Cleavage

Not Available

Perfect {010}

1.7 Mohs Hardness

5-5.5

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

FeO(OH)Arthur Thomas , Gemstones (2009)

Adularia and Goethite Chemical Formula

While comparing Adularia 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 Adularia and Goethite chemical formula.

Chemical formula of Adularia- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

Compare Gems Found in America

Adularia Vs Anglesite

Adularia Vs Andalusite

Adularia Vs Anhydrite

Adularia and Goethite Specific Gravity

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