Albite and Galena Physical Properties

Albite

Galena

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.656.23

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

Subconchoidal, Brittle, Metallic

1.6 Cleavage

Perfect on {001}, very good on {010}, imperfect on {110}

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

1.7 Mohs Hardness

6-6.52.5-2.75

2 10

1.8 Chemical Composition

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

PbS

Albite and Galena Chemical Formula

While comparing Albite and Galena 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 Albite and Galena chemical formula.

Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Galena- PbS

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Albite and Galena Specific Gravity

Another important criteria for qualitative analysis of gemstones is Albite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Albite and Galena Optical Properties during the identification of gemstone. Specific gravity of Albite is 6.23 whereas that of Galena is 6.23.