Zi Collection, Middle Volume Radical: Earth (tǔ) Pronounced fù. Refers to white stones. Originally written as 坿. In "Suburban Tour" (Zixu Fu) by Sima Xiangru, there is the phrase "雌黄白坿" (cí huáng bái fù). Su Lin explained: "白坿" (bái fù) means white quartz. Examination: [In "Suburban Tour" (Zixu Fu) by Sima Xiangru, the phrase is "雌黄白坿" (cí huáng bái fù).] According to the original text, "Suburban Tour" (Shanglin Fu) has been changed to "Suburban Tour" (Zixu Fu). Page 123, Entry 04