Goethite and Chlorite group Physical Properties

Goethite

Chlorite group

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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)

2.6-3.3

Lamellar

Perfect 001

2-2.5

(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6

Goethite and Chlorite group Chemical Formula

While comparing Goethite and Chlorite group 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 Chlorite group chemical formula.

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Goethite and Chlorite group Specific Gravity

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