Click to enlargeMappable Sediment--Porcelain Bowl

7" wide x 2.75" high

Click to read the numbers that can locate the source of this sediment glaze on a map. The sediment is from Orcas basin and is fine-grained, transparent (see exterior) and shows details of terrain in the porcelain clay's surface.

Copper and chromium color the matte and glossy green glazes on this bowl. Clear sea glass in the center foamed up when hot and dragged colorant from sediment back down in; that accounts for the dark area in the cooled glass center.