
The Nature of Minerals
Minerals are natural, inorganic substances with a specific chemical composition and crystal structure, formed through geological processes over time. They are the building blocks of rocks and are essential for various biological, industrial, and environmental functions. Each mineral has unique properties such as hardness, color, and luster, which help identify it. Minerals occur in various forms—from common salt to valuable gemstones—and are mined for use in everything from construction to electronics. Their natural formation and consistent composition make minerals fundamental to understanding Earth's geology and supporting modern technology.