Smithsonite and Natrolite Physical Properties
Specific Gravity
4.00-4.65
2.20-2.26
Fracture
Uneven, Sub-Conchoidal
Uneven
Cleavage
Perfect on [1011]
Perfect on {110}
Mohs Hardness
5-5.5
5-5.5
Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Smithsonite and Natrolite Chemical Formula
While comparing Smithsonite 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 Smithsonite and Natrolite chemical formula.
- Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Smithsonite and Natrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Smithsonite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smithsonite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Smithsonite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.