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Pyromorphite
Pyromorphite

Kutnohorite
Kutnohorite



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Pyromorphite
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Kutnohorite

Pyromorphite and Kutnohorite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

6.5-7.13.12
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Subconchoidal, Conchoidal

Cleavage

Imperfect- [10 1 1]
Perfect on {10 1 1}

Mohs Hardness

3.5-43-4
2 10
👆🏻

Chemical Composition

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Ca(Mn,Mg,Fe)(CO3)2

Pyromorphite and Kutnohorite Chemical Formula

While comparing Pyromorphite and Kutnohorite 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 Pyromorphite and Kutnohorite chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Kutnohorite- Ca(Mn,Mg,Fe)(CO3)2

Pyromorphite and Kutnohorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Kutnohorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Kutnohorite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.12 whereas that of Kutnohorite is 3.12.