Carnelian and Emerald Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
2.58-2.64
  
2.67-2.78
  
Fracture
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Absent
  
Imperfect on the [0001]
  
Mohs Hardness
6.5-7
  
7.5-8
  
Chemical Composition
SiO2
  
Be3Al2SiO6
  
Carnelian and Emerald Chemical Formula
While comparing Carnelian 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 Carnelian and Emerald chemical formula.
- Chemical formula of Carnelian- SiO2
- Chemical formula of Emerald- Be3Al2SiO6
Carnelian and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Carnelian and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Emerald Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2.67-2.78 whereas that of Emerald is 2.67-2.78.