Metal is a solid material that is hard, opaque, and shiny. Metals are used in the chemical, electrical, and mechanical fields. Metals come in four different categories, base, ferrous, noble, and precious metal. Sterling gold and silver were know to man since the Stone Age. Lead and silver were fused from their ores as early as the fourth millennium BC.

About Metals

A metal (from Greek '' mtallon, 'mine, quarry, metal') is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually shiny, malleable and ductile.

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