Hierarchy classification:

1. top of the aat hierarchies
2. Physical Attributes Facet
3. Attributes and Properties (hierarchy name)
4. [attributes and properties by specific type]
5. optical properties

Narrower term/s

• opalescence
• pearlescence

Anotations

Scope note:

Optical property in which fine colors are produced on a surface by the interference of light that is reflected from both the front and back of a thin film. Things that appear iridescent show rainbow-like luminous colors, and often change color as their positions change.