（李时珍曰．石者．气之核．土之骨也．大则为山岩．细则为砂尘．其精者．为金为玉．其毒者．为 为砒．气之凝也．则结而为丹青．气之化也．则液而为矾汞．是以禹贡周官．列其土产．农经轩典．详其性功．亦www.lindalemus.com/jianyan/良相良医之所当注www.lindalemus.com/Article/意者也．)