Celestine and Tourmaline Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.90-4.00
  
2.85-3.35
  
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {001}, good on {210}, poor on {010}
  
Indistinct
  
Mohs Hardness
3-3.5
  
7-7.5
  
Chemical Composition
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
  
Celestine and Tourmaline Chemical Formula
While comparing Celestine and Tourmaline 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 Celestine and Tourmaline chemical formula.
- Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Celestine and Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Celestine and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Celestine is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.