Whitlockite and Hackmanite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.12
  
2.27-2.33
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
None
  
Not Available
  
Mohs Hardness
Not Available
  
5.5-6
  
Chemical Composition
Ca 9(Mg,Fe2+ )(PO 4) 6(PO 3OH)Anthony et al , Handbook of mineralogy (2001)
  
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Whitlockite and Hackmanite Chemical Formula
While comparing Whitlockite 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 Whitlockite and Hackmanite chemical formula.
- Chemical formula of Whitlockite- Ca 9(Mg,Fe2+ )(PO 4) 6(PO 3OH)Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Whitlockite and Hackmanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Whitlockite and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Whitlockite and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Whitlockite is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.