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|Pure gold is the most malleable and ductile of all the metals. Finely divided gold, like other metallic powders, is black; colloidally suspended gold ranges in color from ruby red to purple. gold is extremely inactive. It is unaffected by air, heat, moisture, and most solvents. in current times, gold is mainly used in the construction of parts of a wide-range of deep-space vehicles and emplacement.