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Demantoid
Demantoid

Goethite
Goethite



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Demantoid
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Demantoid and Goethite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
HCl soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.77-3.95
4.27-4.29
1.5 Fracture
Not Available
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
1.6 Cleavage
Not Available
Perfect {010}
1.7 Mohs Hardness
6.5
5-5.5
1.8 Chemical Composition
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
FeO(OH)Arthur Thomas , Gemstones (2009)

Demantoid and Goethite Chemical Formula

While comparing Demantoid 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 Demantoid and Goethite chemical formula.

  • Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

Demantoid and Goethite Specific Gravity

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