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:

One of three naturally occurring crystalline mineral forms (or polymorphs) of calcium carbonate. The other forms are aragonite and calcite. Spherical precipitates of vaterite have been recognized on microbial mats and biofilms in volcanic substrates as found in Roman catacombs.