Galena and Brucite Physical Properties

Galena

Brucite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.232.39

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Irregular

1.6 Cleavage

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

Perfect on {0001}

1.7 Mohs Hardness

2.5-2.752.5

2 10

1.8 Chemical Composition

PbS

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Galena and Brucite Chemical Formula

While comparing Galena and Brucite 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 Brucite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Grey Gemstones

Galena Vs Clinochlore

Galena Vs Falcons Eye

Galena Vs Larvikite

Galena and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Brucite Optical Properties during the identification of gemstone. Specific gravity of Galena is 2.39 whereas that of Brucite is 2.39.