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Mottramite
Mottramite

Charlesite
Charlesite



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Mottramite
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Charlesite

Mottramite and Charlesite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.91.79
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Irregular/uneven

Cleavage

None observed
Perfect on {10bar10}

Mohs Hardness

32.5
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Mottramite and Charlesite Chemical Formula

While comparing Mottramite and Charlesite 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 Charlesite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Mottramite and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 1.79 whereas that of Charlesite is 1.79.