Coral and Gibbsite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.60-2.70
  
2.35
  
Fracture
Irregular, Irregular, Gemstones of the world (2001)
  
Fibrous, Difficult, Fibrous
  
Cleavage
Not Available
  
{001} Perfect
  
Mohs Hardness
3-4
  
2.5-3
  
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
  
Al(OH)3
  
Coral and Gibbsite Chemical Formula
While comparing Coral and Gibbsite 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 Gibbsite chemical formula.
- Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.
- Chemical formula of Gibbsite- Al(OH)3
Coral and Gibbsite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Coral and Gibbsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Coral and Gibbsite Optical Properties during the identification of gemstone. Specific gravity of Coral is 2.35 whereas that of Gibbsite is 2.35.