Goethite and Chrome Tourmaline Physical Properties

Goethite

Chrome Tourmaline

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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

4.27-4.292.85-3.35

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {010}

3,2

1.7 Mohs Hardness

5-5.57-7.5

2 10

1.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

Tourmaline is a series of several different minerals with unique chemical formulas.

Goethite and Chrome Tourmaline Chemical Formula

While comparing Goethite and Chrome Tourmaline 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 Chrome Tourmaline chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.

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Goethite and Chrome Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.