Goethite and Sanidine Physical Properties

Goethite

Sanidine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

HCl soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.27-4.292.54-2.61

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect {010}

{001} Perfect, {010} Good

1.7 Mohs Hardness

5-5.56

2 10

1.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

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

Goethite and Sanidine Chemical Formula

While comparing Goethite and Sanidine 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 Sanidine chemical formula.

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

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Goethite and Sanidine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Sanidine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Sanidine Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.54-2.61 whereas that of Sanidine is 2.54-2.61.