Click to enlargeCosta Rican Accretionary Prism on Porcelain

4" high x 2.75" wide

This sediment might be fine-particled because of being at a subduction zone where plates grind and pressure is immense. When these small particles are applied to clay as a slip, they shrink a lot and curl like a dried river bed when they melt back down and fuse onto the clay in the kiln.

Interior shiny white, top third exterior is a copper glaze assembled from refined materials.