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Piemontite
Piemontite

Mottramite
Mottramite



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Piemontite
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Mottramite

Piemontite and Mottramite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
-9999
Uneven, Splintery
[001] good, [100] distinct
6-6.5
Ca2Al3(SiO4)(Si2O7)O(OH)
 
Brittle
Soluble
-
5.9
Sub-Conchoidal
None observed
3
PbCu(VO4)(OH)

Piemontite and Mottramite Chemical Formula

While comparing Piemontite 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 Piemontite and Mottramite chemical formula.

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Piemontite and Mottramite Specific Gravity

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