Coral and Cordierite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.60-2.70
  
2.57-2.66
  
Fracture
Irregular, Irregular, Gemstones of the world (2001)
  
Subconchoidal, Conchoidal, Brittle
  
Cleavage
Not Available
  
Fair on {100}, poor on {001} and {010}
  
Mohs Hardness
3-4
  
7-7.5
  
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
  
Mg2Al4Si5O18
  
Coral and Cordierite Chemical Formula
While comparing Coral and Cordierite 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 Coral and Cordierite chemical formula.
- Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.
- Chemical formula of Cordierite- Mg2Al4Si5O18
Coral and Cordierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Coral and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Coral and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Coral is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.
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