This is a crazy glaze! On red stoneware it is blues/browns and greens on vertical surfaces- very pretty but on flat surfaces on the same clay it’s a sludgy green/brown fired to 1200 with no hold. But, On a light buff reclaim clay and fire it to 1220 with a 10 min hold and you get bright yellows inside a bowl and patches of yellow on the outside with greens and blues. Put it over black velvet underglaze on part of the pot and you get a pure golden yellow colour. It’s the craziest glaze ever and nothing like the bottle colour.