Narsarsukite and Bustamite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.72-2.83
  
3.32-3.43
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Good on {100} and {110}
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
6-7
  
5.5-6
  
Chemical Composition
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Narsarsukite and Bustamite Chemical Formula
While comparing Narsarsukite and Bustamite 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 Narsarsukite and Bustamite chemical formula.
- Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Narsarsukite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Narsarsukite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Narsarsukite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Narsarsukite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.