Metal (Chinese: 金 ||pinyin]]: jīn), is the decline of the matter, or the matter's decline stage. Metal is the fourth phase of Wu Xing. Metal is yin in character, its motion is inwards and its energy is contracting. It is associated with the Autumn, the west, old age, the planet Venus, the color white, dry weather, and the White Tiger (Bai Hu) in Four Symbols. The archetypal metals are silver and gold.