Riebeckite and Orthoclase Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.28-3.44
  
2.54-2.61
  
Fracture
Uneven, Splintery, Brittle
  
Gems, Uneven
  
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
  
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
  
Mohs Hardness
5.0-6.0
  
6
  
Chemical Composition
Not Available
  
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Riebeckite and Orthoclase Chemical Formula
While comparing Riebeckite 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 Riebeckite and Orthoclase chemical formula.
>- Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Riebeckite and Orthoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Riebeckite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.