Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. mineral

Anotations

Scope note:

A secondary mineral produced by the surface oxidation of primary cobalt. Erythrite is a violet to peach red arsenate once used as a pigment in paints, glass, and ceramics; replaced for these purposes by its synthetic form, cobaltous arsenate.