Neptunite and Orthoclase Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.19-3.23
  
2.54-2.61
  
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
  
Gems, Uneven
  
Cleavage
{110} good
  
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
  
Mohs Hardness
5-6
  
6
  
Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
  
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Neptunite and Orthoclase Chemical Formula
While comparing Neptunite and Orthoclase 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 Neptunite and Orthoclase chemical formula.
- Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Neptunite and Orthoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Neptunite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.