Apophyllite KF and Verdite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.33-2.37
  
2.80-3.0
  
Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
  
Not Available
  
Cleavage
Perfect on {001}, imperfect on {110}
  
{110} Good
  
Mohs Hardness
4.5-5
  
3
  
Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
  
NaFeS2•2(H2O)
  
Apophyllite KF and Verdite Chemical Formula
While comparing Apophyllite KF and Verdite 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 Verdite chemical formula.
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
- Chemical formula of Verdite- NaFeS2•2(H2O)
Apophyllite KF and Verdite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Verdite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.80-3.0 whereas that of Verdite is 2.80-3.0.