銀精丹

銀精丹

硃砂。四兩。粉霜。六兩。三友霜。半斤,如鍊霜以夾布袋盛殊,懸胎煮爲妙。

右取桑柴燒灰,淋取濃汁,以軟火鍊之,鍋内著一握稻草,其汁自結霜在上。以清水淘之,再熬乾成霜。先鋪霜底,四面及中間鋪粉霜,入朱砂在内,仍以粉霜蓋之。次用桑灰霜蓋瓦片,封口,六一泥固灰池,陽火養七日,火候九兩。養之日足,火煅通紅,取出灰池,候冷取砂,其色雪白如銀屑,妙甚。金曾以此代金華大丹頭,其功與之並駕,今書此以記之。

End of chapter

Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji

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