RichThesaurus
melanochroite
vs
phoenicochroite
melanochroite
noun
An alternate name for phoenicochroite.
phoenicochroite
noun
A form of lead chromate with striking orange-red crystals.
How often have the words
melanochroite
and
phoenicochroite
occurred in a corpus of books?
(source:
Google Ngram Viewer
)