Mold identification should never be determined by just color. Actual mold species and their toxicity can only be determined through microscopic analysis by a qualified mycologist or an Indoor Environmental Professional. The term “black mold” is usually used to describe a particular type of mold called Stachybotrys, which is known as toxic mold. However, not every mold that is black is Stachybotrys and to add to the complexity, not all toxic molds are black in color.