Chemical Formula: PbS

Color: Metallic gray

Hardness: 2.5-3

Importance: Galena is mainly used as an ore for lead. Lead from galena is used in lead-acid batteries, which are used in cars, ammunition, solder, and roofing materials.

Other Interesting Information: Almost always forms and breaks into the shape of a cube. Is very dense and heavy, limiting its usefulness in pure form.

My Take: Galena is one of the easiest minerals to identify. It has so many special properties that make it truly unique.

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