Campylite is a rare mineral that is found in forms of fine-grained aggregates in veins, pegmatites, and plutonic igneous rocks. It is a type of phosphate mineral that is composed of calcium, iron, and aluminium. There are different synonyms for campylite depending on the region and geological context. Some of the common synonyms for campylite include wagnerite, erythrophosphate, xenotime, and xenophyllite. These minerals share similar chemical compositions and crystal structures with campylite. The differences in their physical and chemical properties make them unique. Researchers and mineralogists use these synonyms to describe the variations of the mineral campylite found in different mines and geological formations.