Legrandite and Smithsonite Physical Properties
Specific Gravity
3.98-4.04
4.00-4.65
Fracture
Conchoidal
Uneven, Sub-Conchoidal
Cleavage
Imperfect, poor one {100}
Perfect on [1011]
Mohs Hardness
4.5-5
5-5.5
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Smithsonite Chemical Formula
While comparing Legrandite and Smithsonite 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 Legrandite and Smithsonite chemical formula.
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Smithsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Smithsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Smithsonite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 4.00-4.65 whereas that of Smithsonite is 4.00-4.65.