Plumbogummite and Adamite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.014
  
4.32-4.48
  
Fracture
Uneven, Conchoidal
  
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
  
Cleavage
None
  
{101}, good; {010}, poor
  
Mohs Hardness
4-5
  
3.5
  
Chemical Composition
Not Available
  
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
  
Plumbogummite and Adamite Chemical Formula
While comparing Plumbogummite and Adamite 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 Plumbogummite and Adamite chemical formula.
>- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Plumbogummite and Adamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Plumbogummite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.