Foitite and Plumbogummite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.17
  
4.014
  
Fracture
Handbook of mineralogy (2001)
  
Uneven, Conchoidal
  
Cleavage
None
  
None
  
Mohs Hardness
7
  
4-5
  
Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Not Available
  
Foitite and Plumbogummite Chemical Formula
While comparing Foitite and Plumbogummite 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 Foitite and Plumbogummite chemical formula.
- Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
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Foitite and Plumbogummite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Foitite and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Foitite is 4.014 whereas that of Plumbogummite is 4.014.