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Sapphire
Sapphire

Smithsonite
Smithsonite



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Sapphire
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Smithsonite

Sapphire and Smithsonite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

insoluble
-

Durability

-
-

Specific Gravity

3.95-4.034.00-4.65
1 7.18
👆🏻

Fracture

Uneven
Uneven, Sub-Conchoidal

Cleavage

None, but may exhibit parting
Perfect on [1011]

Mohs Hardness

95-5.5
2 10
👆🏻

Chemical Composition

Al 2 O 3
ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Sapphire and Smithsonite Chemical Formula

While comparing Sapphire 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 Sapphire and Smithsonite chemical formula.

  • Chemical formula of Sapphire- Al 2 O 3
  • Chemical formula of Smithsonite- ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Sapphire and Smithsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Smithsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Smithsonite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 4.00-4.65 whereas that of Smithsonite is 4.00-4.65.