Wrought iron is tough, malleable, ductile, corrosion-resistant and easily welded. Beryllium copper is a ductile, weldable, and machinable alloy. Tin is a soft, malleable, ductile and highly crystalline silvery-white metal. A mineral can be brittle, malleable, sectile, ductile, flexible or elastic. White tin is a very shiny, ductile and malleable metal. Another deformation mechanism is metal fatigue, which occurs primarily in ductile metals. Pure platinum is a lustrous, ductile, and malleable, silver-white metal. The resulting metal is sintered until sufficiently ductile for metalworking. It is quite malleable and somewhat ductile. It is ductile, malleable and tough. Cadmium is soft, malleable, ductile, and with a bluish-white color. Brass is generally more ductile and stronger than copper, and has superior corrosion resistance. Even in normally ductile materials, fatigue failures will resemble sudden brittle failures. Strain can take the form of brittle faulting and ductile folding and shearing. The process of shearing occurs within brittle, brittle-ductile, and ductile rocks.