Microcline and Star Sapphire Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.63
  
3.90-4.05
  
Fracture
Uneven, Uneven, Gems
  
Not Available
  
Cleavage
{001} Perfect, {010} Good
  
Not Available
  
Mohs Hardness
6-6.5
  
Not Available
  
Chemical Composition
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
  
Al 2O 3Ulrich Henn and Claudio C.
  
Microcline and Star Sapphire Chemical Formula
While comparing Microcline and Star Sapphire 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 Microcline and Star Sapphire chemical formula.
- Chemical formula of Microcline- KAlSi 3O 8Arthur Thomas , Gemstones (2009)
- Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Microcline and Star Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Microcline and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Microcline and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Microcline is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.