Prehnite and Natrolite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
2.20-2.26
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Uneven, Brittle, Metallic, Gemstones (2009)
Cleavage
Distinct on [001]
Perfect on {110}
Mohs Hardness
6-6.5
5-5.5
Chemical Composition
Ca2Al2Si3O12(OH)
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Prehnite and Natrolite Chemical Formula
While comparing Prehnite and Natrolite 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 Prehnite and Natrolite chemical formula.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Prehnite and Natrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prehnite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.