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Mottramite
Mottramite

Papagoite
Papagoite



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Mottramite
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Papagoite

Mottramite and Papagoite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.93.25
1 7.18
👆🏻

Fracture

Sub-Conchoidal
-

Cleavage

None observed
Imperfect in one direction

Mohs Hardness

35-5.5
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
CaCuAlSi 2O 6(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Mottramite and Papagoite Chemical Formula

While comparing Mottramite and Papagoite 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 Papagoite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Mottramite and Papagoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 3.25 whereas that of Papagoite is 3.25.