Iron Chromite

About

Also known as Ferric Chromite (not to be confused with Chromate)

Produces grey in feldspathic glaze; black in combination with cobalt; brown with zinc; red with tin.

Iron compounds have great natural variety and are the most popular colouring pigments. In addition to the characteristics detailed below, most of them  produce yellow-tan tints (depending on quality and thickness) in lead-tin glazes. At stoneware temperatures black-brown tenmoku effects are developed whilst black and grey-greens are achieved under reduction firing conditions.

Typical results for guidance only:-

Painted onto clay: Brown-black

Painted onto biscuit: Brown-black

Painted onto Unfired Glaze:  Brown (honey), black, green

Mixed into Glaze:  Brown (honey), black, green

Reduction Firing:  Brown (honey), black, green, pale blue (celadon)

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