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Pieter Mostert

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Image Comments posted by Pieter Mostert


  1. I stuck the Colemanite in a bisque firing to 915 C, which should be around cone 09. Theoretically, Colemanite has an LOI of 21.9%, but I've seen an analysis of 23.7%. I don't have the exact % weight loss of the sample I used in front of me, but I think it was just over 24%, so I doubt there's much carbon left, if any.

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