Pleonaste and Neptunite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.80
  
3.19-3.23
  
Fracture
Not Available
  
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
  
Cleavage
Not Available
  
{110} good
  
Mohs Hardness
8
  
5-6
  
Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Pleonaste and Neptunite Chemical Formula
While comparing Pleonaste and Neptunite 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 Pleonaste and Neptunite chemical formula.
- Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleonaste and Neptunite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pleonaste and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pleonaste and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Pleonaste is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.