Galena and Papagoite Physical Properties

Galena

Papagoite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.233.25

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Brittle, Metallic

1.6 Cleavage

Cubic perfect on [001], parting on [111]

Imperfect in one direction

1.7 Mohs Hardness

2.5-2.755-5.5

2 10

1.8 Chemical Composition

PbS

CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Galena and Papagoite Chemical Formula

While comparing Galena 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 Galena and Papagoite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Galena and Papagoite Specific Gravity

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