Willemite and Anthophyllite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.89-4.18
  
2.9-3.5
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
  
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle
  
Cleavage
{0001}, {11 2 0} imperfect
  
{110} Perfect, {???} Distinct, {???} Distinct
  
Mohs Hardness
5.5
  
5.5-6
  
Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
  
Willemite and Anthophyllite Chemical Formula
While comparing Willemite and Anthophyllite 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 Anthophyllite chemical formula.
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Willemite and Anthophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Willemite and Anthophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Anthophyllite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 2.9-3.5 whereas that of Anthophyllite is 2.9-3.5.