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Smithsonite
Smithsonite

Aragonite
Aragonite



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Smithsonite
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Aragonite

Smithsonite and Aragonite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Dilute acid

Durability

-
-

Specific Gravity

4.00-4.652.93-2.96
1 7.18
👆🏻

Fracture

Uneven, Sub-Conchoidal
Subconchoidal, Conchoidal

Cleavage

Perfect on [1011]
Distinct on {010}, imperfect {110} and {011}

Mohs Hardness

5-5.53.5-4
2 10
👆🏻

Chemical Composition

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

Smithsonite and Aragonite Chemical Formula

While comparing Smithsonite and Aragonite 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 Aragonite chemical formula.

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

Smithsonite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smithsonite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smithsonite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Smithsonite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.