Aragonite and Pink Opal Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Dilute acid
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.93-2.96
  
Not Available
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Not Available
  
Cleavage
Distinct on {010}, imperfect {110} and {011}
  
Not Available
  
Mohs Hardness
3.5-4
  
6
  
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Not Available
  
Aragonite and Pink Opal Chemical Formula
While comparing Aragonite and Pink Opal 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 Pink Opal chemical formula.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Aragonite and Pink Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aragonite and Pink Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Pink Opal Optical Properties during the identification of gemstone. Specific gravity of Aragonite is Not Available whereas that of Pink Opal is Not Available.