石鹽
石鹽
岀平州北奚界之中，形狀似黑雲母，光潤者爲上。鹽州亦有，炁力稍軟，波斯國者爲上。
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Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji
金石簿五九數訣
石鹽
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