Willemite and Andesine Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.89-4.18
  
2.65-2.69
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
{0001}, {11 2 0} imperfect
  
Perfect on {001}, good on {010}
  
Mohs Hardness
5.5
  
6-6.5
  
Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Na,Ca)Al1-2Si3-2O8
  
Willemite and Andesine Chemical Formula
While comparing Willemite and Andesine 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 Willemite and Andesine chemical formula.
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Willemite and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Willemite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Willemite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.