Brazilianite and Gahnospinel Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.98-2.99
  
3.65-4.55
  
Fracture
Conchoidal, Gems
  
ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
(010) Distinct to good
  
None, but may exhibit slight parting
  
Mohs Hardness
5.5
  
7.5-8
  
Chemical Composition
NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
  
Brazilianite and Gahnospinel Chemical Formula
While comparing Brazilianite and Gahnospinel 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 Brazilianite and Gahnospinel chemical formula.
- Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Brazilianite and Gahnospinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brazilianite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Brazilianite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.