trichroic

/traɪˈkroʊɪk/
adjective
  1. Showing three different colors when viewed from different angles or under different lighting conditions.
    • The trichroic gemstone appeared green, blue, and yellow depending on how I held it.
    • Mineral collectors prize trichroic crystals for their striking color shifts.
    • The trichroic coating on the lens reflected red, green, and blue light at different angles.