The phrase "a spectrum of colors" provides the best context clues for the meaning of "iridescent." This suggests that iridescent opals display a range of colors that change or shift when viewed from different angles, which is characteristic of iridescence.
use the excerpt to answer the question
Opals come in a variety of colors, and they range from opaque to transparent. The most desirable opals are known as the precious opals. They have a special iridescent quality. As you move the opal under light , it shows a spectrum of colors.
which word provide the best context clues for the meaning of iridescent?
1 answer