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Kutnohorite
Kutnohorite

Mottramite
Mottramite



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Kutnohorite
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Mottramite

Kutnohorite and Mottramite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
Soluble

Durability

-
-

Specific Gravity

3.125.9
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Sub-Conchoidal

Cleavage

Perfect on {10 1 1}
None observed

Mohs Hardness

3-43
2 10
👆🏻

Chemical Composition

Ca(Mn,Mg,Fe)(CO3)2
PbCu(VO4)(OH)

Kutnohorite and Mottramite Chemical Formula

While comparing Kutnohorite 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 Kutnohorite and Mottramite chemical formula.

  • Chemical formula of Kutnohorite- Ca(Mn,Mg,Fe)(CO3)2
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Kutnohorite and Mottramite Specific Gravity

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