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Mummy Brown: Mummy brown was originally made in the 16th and 17th centuries from white pitch, myrrh, and the ground-up remains of Ancient Egyptian mummies.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.