Smithsonite and Alexandrite Physical Properties

Smithsonite

Alexandrite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.00-4.653.69-3.81

1 7.18

1.5 Fracture

Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

Not Available

1.6 Cleavage

Perfect on [1011]

1,1 ; 3,2.

1.7 Mohs Hardness

5-5.58.5

2 10

1.8 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

Compare Green Gemstones

Smithsonite Vs Strontianite

Smithsonite Vs Tavorite

Smithsonite Vs Steatite

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.