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The study or art of mapmaking

A process using activated carbon (wood or coconut shells) in ore pulp to absorbed precious metals and cyanide solution

Containing carbon

Originating from fossilized carbon and oil

A compound of carbon plus one or more metals or minerals

A unit of weight for diamonds, pearls, and other gems

A halogen element, Symbol, Cl

The era following the Mesozoic Era, known as the Era of Mammals

A tool used to cut or chip rock having chisel-shaped cutting edge at its tip

Any calcined mixtures of clay and limestone, usually mixed with water, and gravel and/or sand