In order of tiles
570 Stoneware Soda (Black and White Slip)
Porcelain Electric
Porcelain Soda (Black Slip)
Oribe #9
Cornwall stone 70
Whiting 10
Grolleg Kaolin 10
Zinc oxide 10
Copper carbonate 4
it turned red in a gas kiln with reduction. completely unexpected especially when it was stated Reduction near the image of a green test tile
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