Gahnospinel and Umbalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.65-4.55
3.62-4.33
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)
Cleavage
None, but may exhibit slight parting
Not Available
Mohs Hardness
7.5-8
7-7.5
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Gahnospinel and Umbalite Chemical Formula
While comparing Gahnospinel 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 Gahnospinel and Umbalite chemical formula.
- Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Gahnospinel and Umbalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnospinel and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.