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Wernerite
Wernerite

Mottramite
Mottramite



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Wernerite
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Mottramite

Wernerite and Mottramite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.50-2.805.9
1 7.18
👆🏻

Fracture

-
Sub-Conchoidal

Cleavage

Perfect
None observed

Mohs Hardness

5-6.53
2 10
👆🏻

Chemical Composition

Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)
PbCu(VO4)(OH)

Wernerite and Mottramite Chemical Formula

While comparing Wernerite 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 Wernerite and Mottramite chemical formula.

  • Chemical formula of Wernerite- Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Wernerite and Mottramite Specific Gravity

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