Reedy, Chandra L.2014-07-112014-07-112014-07-11http://udspace.udel.edu/handle/19716/13076Imperial-quality Ru ware sherd (Ru-5), Qingliangsi, Baofeng, Henan, China, Song Dynasty. Total optical porosity 2%, 3% fine sand (≥ 0.063 mm), plus 8% smaller silt-size particles.Image