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Mottramite
Mottramite

Taaffeite
Taaffeite



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Mottramite
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Taaffeite

Mottramite and Taaffeite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.93.60-3.61
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Conchoidal

Cleavage

None observed
Imperfect/fair/absent

Mohs Hardness

38-8.5
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Mottramite and Taaffeite Chemical Formula

While comparing Mottramite and Taaffeite 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 Mottramite and Taaffeite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Mottramite and Taaffeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.