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Goethite
Goethite

Moonstone
Moonstone



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Goethite
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Goethite and Moonstone Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
HCl soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.27-4.29
2.56-2.60
1.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Perfect {010}
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
1.7 Mohs Hardness
5-5.5
6-6.5
1.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8

Goethite and Moonstone Chemical Formula

While comparing Goethite and Moonstone 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 Moonstone chemical formula.

  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8

Goethite and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.

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