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Smithsonite
Smithsonite

Gypsum
Gypsum



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Smithsonite
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Gypsum

Smithsonite and Gypsum Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
4.00-4.65
Uneven, Sub-Conchoidal
Perfect on [1011]
5-5.5
ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Flexible
Soluble
-
2.20-2.40
Conchoidal, Splintery, Fibrous
Perfect on {010}, distinct on {100}
2
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Smithsonite and Gypsum Chemical Formula

While comparing Smithsonite and Gypsum 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 Gypsum chemical formula.

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Smithsonite and Gypsum Specific Gravity

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