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Smithsonite
Smithsonite

Feldspar
Feldspar



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Smithsonite
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Feldspar

Smithsonite and Feldspar Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

4.00-4.652.56-2.75
1 7.18
👆🏻

Fracture

Uneven, Sub-Conchoidal
Uneven, Conchoidal

Cleavage

Perfect on [1011]
two or three

Mohs Hardness

5-5.56-6.5
2 10
👆🏻

Chemical Composition

ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
KAlSi3O8

Smithsonite and Feldspar Chemical Formula

While comparing Smithsonite and Feldspar 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 Feldspar chemical formula.

  • Chemical formula of Smithsonite- ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Feldspar- KAlSi3O8

Smithsonite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smithsonite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smithsonite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Smithsonite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.