The works of more than 50 sculptors are being featured in a trail 100ft (30m) beneath the ground in caves this summer.Back to ...

Ochre is most commonly defined by archaeologists as any iron-rich rock that can be used as a pigment. Most people associate the term with hematite, or red ochre, chemically known as Fe2O3. But a range ...

Red ochre was even found on flint and bone fragments ... making it one of their most important natural products. It was also used on the body as an insect repellant and as a sunscreen.

A red ochre crayon was applied to the smooth silcrete flake to form the three-by-six pattern. To prove that the red lines were a bona fide drawing, and not the result of natural processes ...

“Red ochre, a natural mineral pigment, is the first colored substance associated with humans and frequently found in archaeological contexts throughout human history and on nearly every continent.

Homo sapiens may have found natural ways to protect themselves from the sun’s dangerous rays. Around 40,000 years ago, during a time of environmental upheaval, early humans used ochre, a red ...

The oldest of these carvings dates to 100,000 years ago, some 30,000 years before the red ochre drawing was made ... the Smithsonian National Museum of Natural History’s Human Origins Program ...

A nearly complete projectile point of dendritic chert, a mid-interval biface of translucent quartz, displaying relatively heavy red ochre residue ... window into the natural and technological ...