Bastnasite and Sylvite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.95-5.0
  
1.993
  
Fracture
Uneven
  
Uneven, Brittle
  
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
  
Perfect on [100], [010], [001]
  
Mohs Hardness
4-5
  
2.5
  
Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Not Available
  
Bastnasite and Sylvite Chemical Formula
While comparing Bastnasite and Sylvite 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 Bastnasite and Sylvite chemical formula.
- Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Bastnasite and Sylvite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bastnasite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 1.993 whereas that of Sylvite is 1.993.