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Okay, I just opened a test firing in my tiny kiln, mostly testing a new glaze with various slips and double dipped other glazes. I had a couple pieces come out with pink flashing on this glaze. I'm familiar with the problem caused by chrome and tin, but there is no tin in this glaze, and no strong source of chrome in any of the other glazes (small amounts of chrome in some glaze stains, used in very small amounts, resulting in very pale blue-green glazes. Also, no tin in the other glazes. There were a couple pieces with glazes carrying 2 percent cobalt carbonate. But that's the only