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Smithsonite
Smithsonite

Mottramite
Mottramite



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Smithsonite
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Mottramite

Smithsonite and Mottramite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

4.00-4.655.9
1 7.18
👆🏻

Fracture

Uneven, Sub-Conchoidal
Sub-Conchoidal

Cleavage

Perfect on [1011]
None observed

Mohs Hardness

5-5.53
2 10
👆🏻

Chemical Composition

ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
PbCu(VO4)(OH)

Smithsonite and Mottramite Chemical Formula

While comparing Smithsonite and Mottramite 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 Mottramite chemical formula.

  • Chemical formula of Smithsonite- ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Smithsonite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smithsonite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smithsonite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Smithsonite is 5.9 whereas that of Mottramite is 5.9.