Sardonyx and Umbalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.62-4.33
Fracture
Not Available
Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)
Cleavage
Not Available
Not Available
Mohs Hardness
6.5-7
7-7.5
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Sardonyx and Umbalite Chemical Formula
While comparing Sardonyx and Umbalite 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 Sardonyx and Umbalite chemical formula.
- Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
- Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Sardonyx and Umbalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sardonyx and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.