硝石

硝石

本出益州羌武都隴西,今烏長國者良。近唐麟德年甲子歲,有中人婆羅門支法林,負梵甲來此翻譯,請往五臺山巡禮,行至汾州靈石縣,問云:此大有硝石,何不採用。當時有趙如珪、杜法亮等一十二人,隨梵僧共採,試用全不堪,不如烏長者。又行至澤州,見山茂秀。又云:此亦有硝石,豈能還不堪用。故將漢僧靈悟共採之,得而燒之,紫烟烽。烟曰:此之靈藥,能變五金,衆石得之,盡變成水。校量與烏長,今方知澤州者堪用。金頻試鍊,實表其靈。若比烏長國,乃澤州者稍軟。

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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