Aragonite and Pyrrhotite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Dilute acid
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.93-2.96
  
4.58-4.65
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Uneven
  
Cleavage
Distinct on {010}, imperfect {110} and {011}
  
Absent
  
Mohs Hardness
3.5-4
  
3.5-4.5
  
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Not Available
  
Aragonite and Pyrrhotite Chemical Formula
While comparing Aragonite and Pyrrhotite 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 Aragonite and Pyrrhotite chemical formula.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Aragonite and Pyrrhotite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aragonite and Pyrrhotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Pyrrhotite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 4.58-4.65 whereas that of Pyrrhotite is 4.58-4.65.