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  1. Hi Folks, I have recently painted a simple design in Magnesium oxide over a white tin glaze which matures between 1100 and 1180 C. I read since then that Magnesium Oxide is one of the potters more toxic oxides . There is notoriously very little actual data about the safety of many glaze surfaces, but would anyone hazard an opinion as to the safety of this bowl for functional/ food use - given that the oxide is now securely bonded to a stable glaze? I would love to use/ give this bowl away, but am worried about the toxicity of the oxide which was only put on in a wash solution.
  2. I recently started working with a new black-firing clay body that I developed through trial and error. It contains about about %45 "Barnard Clay", which is a black clay body that I believe contains about %8-9 Manganese Oxide. I have been working with this clay body for about 4-6 months ~20-30 hours a week in the studio. (or at least I try my best for that range) My habits in controlling the dust have ranged from just okay to perhaps foolish. This is due to the massive amount of stress graduate school has been putting on me. This is no excuse - and I'm now focusing on improving this. An
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