Umbalite and Creedite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.62-4.33
2.70
Fracture
Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Not Available
Perfect on {100}
Chemical Composition
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Umbalite and Creedite Chemical Formula
While comparing Umbalite and Creedite 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 Creedite 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 Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Umbalite and Creedite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Umbalite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 2.70 whereas that of Creedite is 2.70.