Ochre pigment was widely used in prehistoric rock art for its vivid red color, but little is known about how the paint was made. According to a study published November 19 in Scientific Reports that ...

One of the key areas of recent research is the study of ochre, a natural earth pigment that has been used in rock art for thousands of years. A review of ochre archaeometry has highlighted the ...

Ochre is a naturally occurring pigment made from iron-rich materials. It is one of Earth’s oldest materials and has been used by people for thousands of years. Known as a pigment for cave ...