pigment

For darker-skinned people, those marks take longer to go away because their skin produces extra pigment when stressed, Aguh said.

From Los Angeles Times ● Oct. 13, 2026

The statue has been patinated with a pigment refined from Lapis Lazuli, a semi-precious stone that has been used by artists for millennia.

From BBC ● Sep. 10, 2026

That pattern was important because it indicated that the carbon was part of the original pigment rather than contamination left by later graffiti, visitors, or tourist activity inside the cave.

From Science Daily ● Jul. 28, 2026

Dark pigment pushed into claw-like scratches feels like a peek into a figure’s spiritual void; fleshy hues bring out nicks and lines that enliven characters’ faces—some pained, others contemplative.

From The Wall Street Journal ● Jun. 19, 2026

“Redness,” the physical trait, in contrast, was the consequence of a chemical pigment in the eye.

From "The Gene" by Siddhartha Mukherjee

“Most black pigments at that time were made by burning different materials.”

From The Wall Street Journal ● Sep. 26, 2026

The first episode investigated that illegible signature and the pigments possibly used on the canvas, including Prussian blue and ivory black.

From The Wall Street Journal ● Sep. 26, 2026

The research also revealed that the pigments Reynolds used contained lead as well as vermilion, carbon black and one or more iron-earth pigments.

From Los Angeles Times ● Aug. 18, 2026

The researchers achieved this effect without using added pigments or specialized coatings to hide the residue.

From Science Daily ● Jul. 20, 2026

The sand beneath it is full of red and brown pigments.

From "A Rover's Story" by Jasmine Warga