明朴硝功力

明朴硝功力

臣按:朴硝是八石之數也,能化十二種石。日鍊餌服之,輕身。神仙鍊之,白如銀,能寒能熱,能滑能澀,能辛能苦,能鹹能酸。入地千歲不變,人擇取白軟者以當硝石也。本草經云:能化十二種石。故用之者,燒之汁沸出狀如礬石也。仙經惟三硝石能化他石,不言朴硝,今此又云化石。故隱居云:必爾可試之。取驗言燒之汁出者,皆須令沸定汁盡,與燒礬石法同。

End of chapter

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