Galena and Albite Physical Properties

Galena

Albite

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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

6.232.60-2.65

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

2.5-2.756-6.5

2 10

1.8 Chemical Composition

PbS

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

Galena and Albite Chemical Formula

While comparing Galena and Albite 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 Albite chemical formula.

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

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Galena and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Albite Optical Properties during the identification of gemstone. Specific gravity of Galena is 2.60-2.65 whereas that of Albite is 2.60-2.65.