Goethite and Jeremejevite Physical Properties

Goethite

Jeremejevite

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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

4.27-4.293.28-3.31

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect {010}

None observed

1.7 Mohs Hardness

5-5.56.5-7.5

2 10

1.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

Goethite and Jeremejevite Chemical Formula

While comparing Goethite and Jeremejevite 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 Jeremejevite chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Jeremejevite- Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

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Goethite and Jeremejevite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Jeremejevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Jeremejevite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 3.28-3.31 whereas that of Jeremejevite is 3.28-3.31.