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Goethite
Goethite

Diaspore
Diaspore



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Goethite
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Goethite and Diaspore Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Very brittle
1.2 Solubility
HCl soluble
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.27-4.293.30-3.40
Amber
1 7.18
1.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Conchoidal, Brittle, Conchoidal
1.6 Cleavage
Perfect {010}
{010} perfect, {110} distinct, {100} in traces
1.7 Mohs Hardness
5-5.56.5-7
Amber
2 10
1.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Goethite and Diaspore Chemical Formula

While comparing Goethite and Diaspore 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 Diaspore chemical formula.

  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Goethite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Goethite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.