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Brucite
Brucite

Goethite
Goethite



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Brucite
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Goethite

Brucite and Goethite Physical Properties

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1 Physical Properties
1.1 Tenacity
Sectile
Not Available
1.2 Solubility
Not Available
HCl soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.394.27-4.29
Amber
1 7.18
1.5 Fracture
Irregular
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
1.6 Cleavage
Perfect on {0001}
Perfect {010}
1.7 Mohs Hardness
2.55-5.5
Amber
2 10
1.8 Chemical Composition
Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
FeO(OH)Arthur Thomas , Gemstones (2009)

Brucite and Goethite Chemical Formula

While comparing Brucite 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 Brucite and Goethite chemical formula.

  • Chemical formula of Brucite- Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

Brucite and Goethite Specific Gravity

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