Colemanite and Emerald Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
2.40-2.42
  
2.67-2.78
  
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{010} Perfect, {001} Distinct
  
Imperfect on the [0001]
  
Mohs Hardness
4.5
  
7.5-8
  
Chemical Composition
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Be3Al2SiO6
  
Colemanite and Emerald Chemical Formula
While comparing Colemanite and Emerald 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 Colemanite and Emerald chemical formula.
- Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Emerald- Be3Al2SiO6
Colemanite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Colemanite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Colemanite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Colemanite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.