Oil paint mainly consists of pigment and oil. Although it uses simple ingredients, the price can become high.

Some rare oil paints include:

Tyrian Purple: Pigment made by sea snail glands, every 12000 sea snails can produce 2g pigment.
Mummy BrownMummy brown was originally made in the 16th and 17th centuries from white pitch, myrrh, and the ground-up remains of Ancient Egyptian mummies.
Ultramarine: This pigment is made from lapis lazuli, and was extremely precious during The Renaissance period.
Indian Yellow
: This pigment is made from special cow urine, being produces by cows that live on mango leaves.