Apophyllite KF and Celestine Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.33-2.37
  
3.90-4.00
  
Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Perfect on {001}, imperfect on {110}
  
Perfect on {001}, good on {210}, poor on {010}
  
Mohs Hardness
4.5-5
  
3-3.5
  
Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
  
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Apophyllite KF and Celestine Chemical Formula
While comparing Apophyllite KF and Celestine 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 Celestine chemical formula.
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
- Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apophyllite KF and Celestine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Celestine Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 3.90-4.00 whereas that of Celestine is 3.90-4.00.