Galena and Linarite Physical Properties

Galena

Linarite

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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

6.235.35

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

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

Perfect on {100}, imperfect on {001}

1.7 Mohs Hardness

2.5-2.752.5

2 10

1.8 Chemical Composition

PbS

PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Galena and Linarite Chemical Formula

While comparing Galena and Linarite 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 Linarite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Galena and Linarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Linarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Linarite Optical Properties during the identification of gemstone. Specific gravity of Galena is 5.35 whereas that of Linarite is 5.35.