Galena and Sylvite Physical Properties

Galena

Sylvite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

6.231.993

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Uneven, Brittle

1.6 Cleavage

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

Perfect on [100], [010], [001]

1.7 Mohs Hardness

2.5-2.752.5

2 10

1.8 Chemical Composition

PbS

Not Available

Galena and Sylvite Chemical Formula

While comparing Galena and Sylvite 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 Sylvite chemical formula.

Chemical formula of Galena- PbS

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Galena and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Galena is 1.993 whereas that of Sylvite is 1.993.