Pleonaste and Willemite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.80
  
3.89-4.18
  
Fracture
Not Available
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
  
Cleavage
Not Available
  
{0001}, {11 2 0} imperfect
  
Mohs Hardness
8
  
5.5
  
Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Pleonaste and Willemite Chemical Formula
While comparing Pleonaste and Willemite 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 Pleonaste and Willemite chemical formula.
- Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleonaste and Willemite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pleonaste and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pleonaste and Willemite Optical Properties during the identification of gemstone. Specific gravity of Pleonaste is 3.89-4.18 whereas that of Willemite is 3.89-4.18.