Gahnospinel and Pumpellyite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.65-4.55
  
3.20-3.30
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
  
Not Available
  
Cleavage
None, but may exhibit slight parting
  
Not Available
  
Mohs Hardness
7.5-8
  
5-6
  
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
  
Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.
  
Gahnospinel and Pumpellyite Chemical Formula
While comparing Gahnospinel and Pumpellyite 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 Pumpellyite chemical formula.
- Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.
Gahnospinel and Pumpellyite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnospinel and Pumpellyite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Pumpellyite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.20-3.30 whereas that of Pumpellyite is 3.20-3.30.