a silicate substance from the salt-wells in Szechwan; it is used as a wash for hardening plaster, etc., also for certain skin diseases, like ringworm, sulphate of copper
䃫【午集下】【石部】 康熙筆画：18画，部外筆画：13画
《廣韻》都敢切《集韻》《韻會》覩敢切，音膽。《玉篇》石䃫，藥名，出蜀中。《正字通》本草綱目：石膽石中有汁，如膽汁，酸辛氣寒，治諸癇石淋目痛。俗作䃫。
