铅丹

{{infobox mineral
| name = 铅丹
| category = 氧化物矿物
| image = Minium-232908.jpg
| imagesize = 220px
| alt =
| caption = 白铅矿上的铅丹，来自亚利桑那州图森山老尤马矿
| formula = Pb2+2Pb4+O4
| molweight =
| strunz = 4.BD.05
| dana = 07.02.08.01
| system = 四方
| class = 双四方双锥体 (4/mmm)
H-M记号：(4/m 2/m 2/m)
| symmetry = P42/mbc
| unit cell = a = 8.811(5) Å, c = 6.563(3) Å; Z = 4
| color = 鲜红色至棕红色，可能带有淡黄色
| colour =
| habit = 鳞片状，通常为泥状或粉状团块
| twinning =
| cleavage = {110}完美，{010}完美
| fracture =
| tenacity =
| mohs = 2.5
| luster = 泥土光泽至略带油脂光泽
| streak = 橙黄色
| diaphaneity = 半透明
| gravity = 8.9 - 9.2
| density =
| polish =
| opticalprop = 单轴
| refractive = n = 2.42
| birefringence =
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}}
铅丹（），也被称为红丹，是四氧化三铅的天然形式。铅丹是从浅到鲜红色的，可能有棕到黄色的色调。它通常以鳞片状至土状团块形成。它以四方晶系结晶。。内服入丸、散。

*《神农本草经》：“铅丹，味辛微寒。主治咳逆胃反，惊痫癫疾，除热下气。炼化还成九光。久服通神明。生平泽。”
*《本草纲目》石部·铅丹：“又名黄丹、丹粉、朱粉、铅华。系用铅、硫磺、硝石等合炼而成。”

依照現代常識，外用鉛丹也會造成鉛中毒。

参考资料