Manganese Dioxide

4515 MANGANESE DIOXIDE
Black, finely ground powder giving sepia or grey-brown colour in lead and leadless glazes
with plum or purple colour in alkaline tin ones. With cobalt, or cobalt and Iron, produces
good black. Also called manganese oxide

A purple brown colour in its powdered form.

Painted onto clay: Dark-brown

Painted onto biscuit: Dark-brown

Painted onto unfired glaze: Brown, sometimes plum depending on glaze make-up

Mixed into glaze: Brown, sometimes plum depending on glaze make-up

Reduction firing: Brown

Please note:  that these are the typical results,but combinations of oxides will produce different results depending upon the relative percentages of each used and the firing conditions in the kiln.  Also the underlying body colour will influence the resulting colour.