Apophyllite KF and Bastnasite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.33-2.37
  
4.95-5.0
  
Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
  
Uneven
  
Cleavage
Perfect on {001}, imperfect on {110}
  
Imperfect to indistinct on {10 1 0}, parting on {0001}
  
Mohs Hardness
4.5-5
  
4-5
  
Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
  
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Apophyllite KF and Bastnasite Chemical Formula
While comparing Apophyllite KF and Bastnasite 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 Bastnasite chemical formula.
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
- Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apophyllite KF and Bastnasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Bastnasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Bastnasite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 4.95-5.0 whereas that of Bastnasite is 4.95-5.0.