Dumortierite and Precious Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.26-3.41
1.98-2.25
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Not Available
Mohs Hardness
7-8.5
5-6.5
Chemical Composition
AlAl6O3BSi3O18
SiO 2 · nH 2OGemdat.org , Management Team (2012)
Dumortierite and Precious Opal Chemical Formula
While comparing Dumortierite and Precious Opal 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 Dumortierite and Precious Opal chemical formula.
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
Dumortierite and Precious Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dumortierite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.