Goethite and Prase Physical Properties

Goethite

Prase

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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

4.27-4.292.64-2.69

1 7.18

1.5 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect {010}

Not Available

1.7 Mohs Hardness

5-5.57

2 10

1.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Goethite and Prase Chemical Formula

While comparing Goethite and Prase 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 Prase chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Goethite and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Prase Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.64-2.69 whereas that of Prase is 2.64-2.69.