雄黄

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2018-10-07 14:04:43 
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An arsenic-containing mineral that occurs as soft red masses and was formerly used as a pigment and in medicines. Also called red arsenic, red orpiment.——牛津当代大辞典  @en

一种橘红色的矿物,是一种二硫化二砷所组成的团块状物质,带有树脂的光泽;在欧洲、亚洲以及北美洲西部的铅和银矿石中可以找到,与雌黄(三硫化二砷)并存。由于雄黄带有明亮饱满的颜色,因此曾经广泛用来做为颜料。——AAT-台湾

又称“鸡冠石”。一种硫化物矿物。——汉语大词典  @zh
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雄黄  @zh
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