Hambergite and Sillimanite Physical Properties
Tenacity
Brittle
  
Tough
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.33-2.37
  
3.20-3.26
  
Fracture
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
  
Splintery
  
Cleavage
Perfect on {010}, good on {100}
  
{010} perfect
  
Mohs Hardness
7.5
  
6-7.5
  
Chemical Composition
Be 2BO 3(OH)Ulrich Henn and Claudio C.
  
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Hambergite and Sillimanite Chemical Formula
While comparing Hambergite and Sillimanite 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 Hambergite and Sillimanite chemical formula.
- Chemical formula of Hambergite- Be 2BO 3(OH)Ulrich Henn and Claudio C.
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Hambergite and Sillimanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hambergite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hambergite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Hambergite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.