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. white pigment
10. opaque white pigment

Anotations

Scope note:

White pigment typically composed of nearly equal proportions of titanium white and zinc white. The mixture of the two pigments is more durable than either used alone. Composite white has been used since the 1920s as a house paint.