Taaffeite and Common Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.60-3.61
1.98-2.50
Fracture
Conchoidal
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
Imperfect/fair/absent
Not Available
Mohs Hardness
8-8.5
5.5-6.5
Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Taaffeite and Common Opal Chemical Formula
While comparing Taaffeite and Common 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 Taaffeite and Common Opal chemical formula.
- Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Taaffeite and Common Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Taaffeite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Taaffeite and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Taaffeite is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.