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Mottramite
Mottramite

Mellite
Mellite



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Mottramite
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Mellite

Mottramite and Mellite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.91.58-1.60
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Conchoidal

Cleavage

None observed
{011} Imperfect

Mohs Hardness

32
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Mottramite and Mellite Chemical Formula

While comparing Mottramite and Mellite 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 Mellite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Mottramite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.