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雄黄(英語:Realgar),又称鸡冠石,是一种含砷硫化物矿物,化学式为α-As4S4。它是一种柔软的可切矿物,以单斜晶系晶体或粒状、紧密块状和粉末狀出现,常与雌黄(As2S3)共生;它呈橙红色,在...