Willemite and Glaucophane Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.89-4.18
  
3-3.15
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
  
Conchoidal, Brittle, Conchoidal
  
Cleavage
{0001}, {11 2 0} imperfect
  
Good on [110] and on [001]
  
Mohs Hardness
5.5
  
6.0-6.5
  
Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
[ ]Na2(Mg3Al2)Si8O22(OH)2
  
Willemite and Glaucophane Chemical Formula
While comparing Willemite and Glaucophane 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 Glaucophane chemical formula.
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Willemite and Glaucophane Specific Gravity
Another important criteria for qualitative analysis of gemstones is Willemite and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Willemite is 3-3.15 whereas that of Glaucophane is 3-3.15.