Natrolite and Falcons Eye Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.26
  
2.58-2.64
  
Fracture
Uneven, Brittle, Metallic, Gemstones (2009)
  
Gemstones of the world (2001)
  
Cleavage
Perfect on {110}
  
Not Available
  
Mohs Hardness
5-5.5
  
7
  
Chemical Composition
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SiO 2Walter Schumann , Gemstones of the world (2001)
  
Natrolite and Falcons Eye Chemical Formula
While comparing Natrolite and Falcons Eye 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 Natrolite and Falcons Eye chemical formula.
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Falcons Eye- SiO 2Walter Schumann , Gemstones of the world (2001)
Natrolite and Falcons Eye Specific Gravity
Another important criteria for qualitative analysis of gemstones is Natrolite and Falcons Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Falcons Eye Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 2.58-2.64 whereas that of Falcons Eye is 2.58-2.64.