An orange-red to grayish yellow mixture of several uranium oxides, silicates, and salts occurring naturally in the oxidation and hydration of uraninite.
脂铅铀矿一种由桔红到黄灰色的多种铀氧化物、硅酸盐和盐的混和物，在铀矿物的自然。
The colors of classics, history, philosophy and belles-lettres were selected according to spring, summer, autumn and winter seasons, which were green, red, white or light blue and grayish black.
经、史、子、集四部颜色依春、夏、秋、冬四季而定，分别是绿色、红色、白色（或浅蓝色）、灰黑色。
A dark or grayish purplish red to dark purplish pink.
介于带暗褐色的红色到带紫色的红色之间。
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