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Smithsonite
Smithsonite

Sylvite
Sylvite



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Smithsonite
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Sylvite

Smithsonite and Sylvite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

4.00-4.651.993
1 7.18
👆🏻

Fracture

Uneven, Sub-Conchoidal
Uneven

Cleavage

Perfect on [1011]
Perfect on [100], [010], [001]

Mohs Hardness

5-5.52.5
2 10
👆🏻

Chemical Composition

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

Smithsonite and Sylvite Chemical Formula

While comparing Smithsonite and Sylvite 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 Sylvite chemical formula.

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

Smithsonite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smithsonite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smithsonite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Smithsonite is 1.993 whereas that of Sylvite is 1.993.