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Mottramite
Mottramite

Pyromorphite
Pyromorphite



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Mottramite
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Pyromorphite

Mottramite and Pyromorphite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
5.9
Sub-Conchoidal
None observed
3
PbCu(VO4)(OH)
 
Brittle
-
-
6.5-7.1
Uneven, Conchoidal
Imperfect- [10 1 1]
3.5-4
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Mottramite and Pyromorphite Chemical Formula

While comparing Mottramite and Pyromorphite 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 Pyromorphite chemical formula.

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Mottramite and Pyromorphite Specific Gravity

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