incrustation
/ˌɪnkrʌˈsteɪʃən/
noun
- A hard outer layer or coating that forms on a surface, often from minerals or other deposits.
- The statue's surface had an incrustation of dirt and moss after years outdoors.
- Geologists studied the incrustation on the cave walls to learn about the water's mineral content.
- The old pipes were clogged with a thick incrustation of calcium.
- A decorative covering or inlay on a surface, such as gems or precious materials.
- Artists used gold incrustation to embellish the altar in the cathedral.
- The ancient crown featured an incrustation of rubies and emeralds.
- The jewelry box had a beautiful incrustation of mother-of-pearl.