It is a component in some ceramic glazes and metal patinas. The surfaces of his works often feature applied patinas or hammered textures. At this time Carbonell moved from his high polished bronzes to dark patinas. Ivory objects usually have russet or yellow patinas. Such coatings are likely similar to the patinas found on lunar rocks. The copper patinas are very thin&colon; just in thickness. A number of his more important statues featured gilt patinas in real 24 carat gold. In France, his work focused on patinas, colors, and material. Trewax works well on both light and dark patinas, and is fast drying. A single work may consist of several materials, differentiated by varied patinas and polychromy. A wide range of chemicals, both household and commercial, can give a variety of patinas. The pieces were heavily patinated, sometimes with a number of different patinas.