Piemontite and Fuchsite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.77-2.88
  
Fracture
Uneven, Splintery
  
Uneven
  
Cleavage
[001] good, [100] distinct
  
Perfect basal
  
Mohs Hardness
6-6.5
  
2.5
  
Chemical Composition
Not Available
  
K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
  
Piemontite and Fuchsite Chemical Formula
While comparing Piemontite and Fuchsite 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 Piemontite and Fuchsite chemical formula.
>- Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
Piemontite and Fuchsite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Piemontite and Fuchsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Fuchsite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 2.77-2.88 whereas that of Fuchsite is 2.77-2.88.