Umbalite and Rhodolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.62-4.33
  
3.84
  
Fracture
Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)
  
Conchoidal
  
Cleavage
Not Available
  
none, may show indistinct parting
  
Mohs Hardness
7-7.5
  
7-7.5
  
Chemical Composition
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
  
(Mg,Fe)3Al2Si3O12
  
Umbalite and Rhodolite Chemical Formula
While comparing Umbalite and Rhodolite 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 Rhodolite 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 Rhodolite- (Mg,Fe)3Al2Si3O12
Umbalite and Rhodolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Umbalite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 3.84 whereas that of Rhodolite is 3.84.