Hematite and Aragonite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Dilute acid
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.00-5.30
  
2.93-2.96
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
None, may show partings on {0001} and {10 1 1}
  
Distinct on {010}, imperfect {110} and {011}
  
Mohs Hardness
6
  
3.5-4
  
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
  
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Hematite and Aragonite Chemical Formula
While comparing Hematite and Aragonite 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 Aragonite chemical formula.
- Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hematite and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hematite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.