Nosean and Emerald Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
2.30-2.40
  
2.67-2.78
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{110} Perfect
  
Imperfect on the [0001]
  
Mohs Hardness
Not Available
  
7.5-8
  
Chemical Composition
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
  
Be3Al2SiO6
  
Nosean and Emerald Chemical Formula
While comparing Nosean 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 Nosean and Emerald chemical formula.
- Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Emerald- Be3Al2SiO6
Nosean and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nosean and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nosean and Emerald Optical Properties during the identification of gemstone. Specific gravity of Nosean is 2.67-2.78 whereas that of Emerald is 2.67-2.78.