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