Povondraite and Ekanite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.26
  
3.28-3.32
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Cleavage
None
  
{101} Distinct
  
Mohs Hardness
Not Available
  
6-6.5
  
Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
  
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
  
Povondraite and Ekanite Chemical Formula
While comparing Povondraite and Ekanite 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 Povondraite and Ekanite chemical formula.
- Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Ekanite- ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
Povondraite and Ekanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Povondraite and Ekanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Povondraite and Ekanite Optical Properties during the identification of gemstone. Specific gravity of Povondraite is 3.28-3.32 whereas that of Ekanite is 3.28-3.32.