incrustation

noun5

1. •
   A crust or hard coating of anything upon or within a body, as a deposit of lime, sediment, etc., from water on the inner surface of a steam boiler.
2. •
   (figurative) An accumulated characteristic of a person that disguises their true nature.
3. •
   The act of incrusting, or the state of being incrusted.
4. •
   A covering or inlaying of marble, mosaic, etc., attached to the masonry by cramp irons or cement.
5. •
   Anything inlaid or embedded.