Smithsonite and Alexandrite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.00-4.65
3.69-3.81
Fracture
Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Not Available
Cleavage
Perfect on [1011]
1,1 ; 3,2.
Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
BeAl 2 O 4
Smithsonite and Alexandrite Chemical Formula
While comparing Smithsonite and Alexandrite 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 Alexandrite chemical formula.
- Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Alexandrite- BeAl 2 O 4
Smithsonite and Alexandrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Smithsonite and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smithsonite and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Smithsonite is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.