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Opal
Opal

Dumortierite
Dumortierite



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Opal
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Dumortierite

Opal and Dumortierite Physical Properties

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1 Physical Properties
1.1 Tenacity
BrittleWalter Schumann
Not Available
1.2 Solubility
hot salt water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.253.26-3.41
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
1.6 Cleavage
None
Distinct on {100}, poor on {110}; parting on {001}
1.7 Mohs Hardness
5-6.57-8.5
Amber
2 10
1.8 Chemical Composition
SiO2 · nH2O
AlAl6O3BSi3O18

Opal and Dumortierite Chemical Formula

While comparing Opal and Dumortierite 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 Opal and Dumortierite chemical formula.

  • Chemical formula of Opal- SiO2 · nH2O
  • Chemical formula of Dumortierite- AlAl6O3BSi3O18

Opal and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.