Strontianite and Sapphire Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.63-3.79
  
3.95-4.03
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
{110} Good
  
None, but may exhibit parting
  
Mohs Hardness
3.5
  
9
  
Chemical Composition
SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
  
Al 2 O 3
  
Strontianite and Sapphire Chemical Formula
While comparing Strontianite and 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 Strontianite and Sapphire chemical formula.
- Chemical formula of Strontianite- SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Sapphire- Al 2 O 3
Strontianite and Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Strontianite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Strontianite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Strontianite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.