Reduction iron speckle much heavier one one body than another
An example of how iron stone concretions contained within two clay bodies (a white and brown stoneware) blossom and produce speckle at cone 10 reduction.
Iron Oxide Red
A sought-after visual effect that occurs in reduction fired stoneware. Particles of iron pyrite that occur naturally in the clay melt and blossom up through the glaze
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