Natrolite and Sapphire Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.20-2.26
3.95-4.03
Fracture
Uneven, Brittle, Metallic, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Perfect on {110}
None, but may exhibit parting
Chemical Composition
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2 O 3
Natrolite and Sapphire Chemical Formula
While comparing Natrolite and Sapphire 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 Sapphire 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 Sapphire- Al 2 O 3
Natrolite and Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Natrolite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.