• (n.) A mineral of a red, or brownish or yellowish red color. It is a chromate of lead; -- called also phoenicocroite.
Mel`a·no·chro'ite noun [ See Melanochroic .] (Min.) A mineral of a red, or brownish or yellowish red color. It is a chromate of lead; -- called also phœnicocroite . 
Melanochroite is a chromate of lead mineral of a red, or brownish or yellowish red colour.