Manganese dioxide is a ceramic colorant mainly used to obtain black and dark brown colors. Its application not only provides a deep and opaque tone, but also generates textured and reactive effects when combined with other oxides, which makes it ideal for glazes with color variations.
In addition, manganese dioxide is known for its ability to promote speckled or crystallized effects on the glaze surface, and in certain formulations it can induce color changes by interacting with other components during firing. This material is also useful in high temperature glazes, where it helps to achieve matte or satin finishes, contributing to both the aesthetics and durability of the pieces.
Interesting Fact
Manganese has been used since prehistoric times as a ceramic colorant, and its use can be traced back to Neolithic pottery.
Helpful Tip
Use manganese dioxide in small amounts, as it is a strong material that can overpower other glaze colors. Also, due to its toxicity, always work in a well-ventilated space and with proper protective equipment.
