Nuummite and Witherite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.18-3.37
  
4.27-4.35
  
Fracture
Conchoidal
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
Perfect on 210
  
{010} Distinct
  
Mohs Hardness
5.5-6
  
3-3.5
  
Chemical Composition
Not Available
  
BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Nuummite and Witherite Chemical Formula
While comparing Nuummite and Witherite 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 Witherite chemical formula.
>- Chemical formula of Witherite- BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nuummite and Witherite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nuummite and Witherite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nuummite and Witherite Optical Properties during the identification of gemstone. Specific gravity of Nuummite is 4.27-4.35 whereas that of Witherite is 4.27-4.35.