agatizes

/ˈæɡəˌtaɪzɪz/
verb
  1. To cause something to look like or become like agate, a type of hard stone with banded colors.
    • In geology class, we learned how heat and pressure agatizes certain minerals over time.
    • The jeweler agatizes the surface of the metal to give it a striped, stone-like finish.
    • The artist agatizes the clay by adding layers of different colors.
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