1109 is a very unusual and exiting clay. It´s mixed with different natural stoneware clay, and also contain 10% of fine sand (grinded lava and ball clay). The clay is very good for throwing and is very plastic due to ball clay. In oxidize burning the clay get light grey with "reductionspots" in reduction darker grey with more marked spots. Mostly stoneware glaze get´s very beautiful on 1109.
Rek. burn temp 1220º-1280º