Lawsonite and Tugtupite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.09
  
2.30-2.60
  
Fracture
White, Yellow, Pale blue, Brittle, Uneven
  
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {100} and {010}, imperfect on {101}
  
{111} Imperfect
  
Mohs Hardness
8
  
5.5-6
  
Chemical Composition
Not Available
  
Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Lawsonite and Tugtupite Chemical Formula
While comparing Lawsonite 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 Lawsonite and Tugtupite chemical formula.
>- Chemical formula of Tugtupite- Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Lawsonite and Tugtupite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lawsonite and Tugtupite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite and Tugtupite Optical Properties during the identification of gemstone. Specific gravity of Lawsonite is 2.30-2.60 whereas that of Tugtupite is 2.30-2.60.