Hematite and Hackmanite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.00-5.30
  
2.27-2.33
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
None, may show partings on {0001} and {10 1 1}
  
Not Available
  
Mohs Hardness
6
  
5.5-6
  
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
  
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Hematite and Hackmanite Chemical Formula
While comparing Hematite and Hackmanite 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 Hematite and Hackmanite chemical formula.
- Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Hematite and Hackmanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hematite and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.