encrustation
/ɪnˌkrʌsˈteɪʃən/
noun
- A hard outer layer or coating that forms on a surface, often made of minerals, salt, or other substances.
- The old pipes were covered with a thick encrustation of calcium.
- The ship's hull had an encrustation of barnacles and algae.
- Geologists studied the mineral encrustation on the cave walls.
- A decorative layer of jewels, gems, or precious materials on an object.
- The crown featured an encrustation of diamonds and rubies.
- The ancient vase had an encrustation of lapis lazuli.
- The artist added an encrustation of gold leaf to the frame.