Sard and Tugtupite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.63
  
2.30-2.60
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
{111} Imperfect
  
Mohs Hardness
6.5-7
  
5.5-6
  
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
  
Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sard and Tugtupite Chemical Formula
While comparing Sard and Tugtupite 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 Sard and Tugtupite chemical formula.
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
- Chemical formula of Tugtupite- Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sard and Tugtupite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sard and Tugtupite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Tugtupite Optical Properties during the identification of gemstone. Specific gravity of Sard is 2.30-2.60 whereas that of Tugtupite is 2.30-2.60.