Natrolite and Spinel Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
2.20-2.26
3.64-3.66
Fracture
Uneven, Brittle, Metallic, Gemstones (2009)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {110}
None, but may exhibit slight parting
Chemical Composition
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MgAl2O4
Natrolite and Spinel Chemical Formula
While comparing Natrolite and Spinel 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 Spinel 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 Spinel- MgAl2O4
Natrolite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Natrolite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.