Clinozoisite and Goethite Physical Properties

Clinozoisite

Goethite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.21-3.384.27-4.29

1 7.18

1.5 Fracture

Irregular/uneven, Uneven

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

1.6 Cleavage

Perfect on {001}

Perfect {010}

1.7 Mohs Hardness

6-75-5.5

2 10

1.8 Chemical Composition

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

FeO(OH)Arthur Thomas , Gemstones (2009)

Clinozoisite and Goethite Chemical Formula

While comparing Clinozoisite 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 Clinozoisite and Goethite chemical formula.

Chemical formula of Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

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Clinozoisite and Goethite Specific Gravity

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