sparklingmango Posted April 18, 2015 Report Share Posted April 18, 2015 Hello all...This morning I woke up and I went to check how my pieces were doing. I made two batches, one copper oxide and one maganese oxide. The copper oxide efflorescence has started, but it looks very strange.... Is this normal or does anyone have any ideas?? It looks a lot different to the other pieces. Formula: 90g silica 5g soda 5g lime 2.2g copper oxide 7g ball clay 30ml water Link to comment Share on other sites More sharing options...
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