Hibonite and Smithsonite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.84
  
4.00-4.65
  
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
  
Cleavage
{0001} good, {10 1 0} parting
  
Perfect on [1011]
  
Mohs Hardness
7.5-8
  
5-5.5
  
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
  
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Hibonite and Smithsonite Chemical Formula
While comparing Hibonite and Smithsonite 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 Hibonite and Smithsonite chemical formula.
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
- Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hibonite and Smithsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibonite and Smithsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Smithsonite Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 4.00-4.65 whereas that of Smithsonite is 4.00-4.65.