Hardness is a measure of a material's resistance to deformation, scratching, or indentation. It is an important property in material science, influencing how materials are used in various applications. For example, metals like Steel are often chosen for their hardness, making them suitable for tools and construction materials. In the context of minerals, hardness is commonly assessed using the Mohs Scale, which ranks minerals from 1 (talc) to 10 (diamond). This scale helps identify minerals and understand their durability and suitability for different uses, such as jewelry or industrial applications.