Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by function]
6. colorant (material)
7. pigments
8. [pigment by color]
9. brown pigment
10. synthetic inorganic brown pigment

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by function
6. colorant
7. pigments
8. pigment by composition or origin
9. inorganic pigment
10. ocher

Anotations

Scope note:

A natural earth brown pigment ranging in color from a dark yellow to a deep reddish brown, containing silica, clay, and a mixture of iron oxides along with small amounts of manganese dioxide. It may be called "umber" or "sienna," depending on its color.