Natrolite and Charoite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.26
  
2.54-2.78
  
Fracture
Uneven, Brittle, Metallic, Gemstones (2009)
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {110}
  
Good in three directions
  
Mohs Hardness
5-5.5
  
5-6
  
Chemical Composition
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Natrolite and Charoite Chemical Formula
While comparing Natrolite and Charoite 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 Charoite 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 Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Natrolite and Charoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Natrolite and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Charoite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 2.54-2.78 whereas that of Charoite is 2.54-2.78.