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Quartz
Quartz

Goethite
Goethite



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Quartz
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Goethite

Quartz and Goethite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
HCl soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.654.27-4.29
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Brittle, Gems
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
1.6 Cleavage
{0110} Indistinct
Perfect {010}
1.7 Mohs Hardness
75-5.5
Amber
2 10
1.8 Chemical Composition
SiO2
FeO(OH)Arthur Thomas , Gemstones (2009)

Quartz and Goethite Chemical Formula

While comparing Quartz 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 Quartz and Goethite chemical formula.

  • Chemical formula of Quartz- SiO2
  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

Quartz and Goethite Specific Gravity

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