Nuummite and Phenakite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.18-3.37
  
2.90-2.98
  
Fracture
Conchoidal
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
  
Cleavage
Perfect on 210
  
Distinct on {11 2 0}, imperfect on {10 1 1}
  
Mohs Hardness
5.5-6
  
7.5-8
  
Chemical Composition
Not Available
  
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Nuummite and Phenakite Chemical Formula
While comparing Nuummite and Phenakite 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 Nuummite and Phenakite chemical formula.
>- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nuummite and Phenakite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nuummite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nuummite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Nuummite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.