Apophyllite KF and Hibonite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.33-2.37
  
3.84
  
Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
  
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Perfect on {001}, imperfect on {110}
  
{0001} good, {10 1 0} parting
  
Mohs Hardness
4.5-5
  
7.5-8
  
Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
  
(Ca,Ce)(Al,Ti,Mg)12O19
  
Apophyllite KF and Hibonite Chemical Formula
While comparing Apophyllite KF and Hibonite 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 Apophyllite KF and Hibonite chemical formula.
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Apophyllite KF and Hibonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 3.84 whereas that of Hibonite is 3.84.