Taaffeite and Opal Physical Properties
Tenacity
Not Available
BrittleWalter Schumann
Solubility
Not Available
hot salt water
Durability
Not Available
Not Available
Specific Gravity
3.60-3.61
1.98-2.25
Fracture
Conchoidal
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Imperfect/fair/absent
None
Mohs Hardness
8-8.5
5-6.5
Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
SiO2 · nH2O
Taaffeite and Opal Chemical Formula
While comparing Taaffeite and 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 Opal chemical formula.
- Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Opal- SiO2 · nH2O
Taaffeite and Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Taaffeite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Taaffeite and Opal Optical Properties during the identification of gemstone. Specific gravity of Taaffeite is 1.98-2.25 whereas that of Opal is 1.98-2.25.