
The colors of art change not just with trends, but availability as well. For reasons of being incredibly poisonous, expensive, or just involving way too many snails, here are five pigments that have disappeared from art.
Maya Blue
On murals, pottery, even possibly painted on the hapless bodies offered as human sacrifices, a sky-blue color has been found in artifacts of the Maya and Aztec. It disappeared around colonial times in Central America, just like the pre-Columbian civilizations themselves. Known as Maya Blue, it’s long been recognized as a mix of a natural clay and a dye from the indigo plant, but how it was so durable in not being subject to fading or even the deterioration of solvents and acids has been a mystery. Earlier this year, however, some chemists announced they may have found the secret in careful variations in the preparation temperatures.Tyrian Purple

Burial Shroud of Charlemagne (early 9th century), made of Byzantine silk colored with Tyrian Purple (via Wikimedia)
White Lead

White Lead in Johannes Vermeer’s “The Glass of Wine” (1658), oil on canvas (via WikiPaintings)
Lapis Lazuli

Lapis Lazuli used in a detail of “The Ascension,” attributed to Jacopo di Cione (1371)
(via The National Gallery, London)
(via The National Gallery, London)
Dragon’s Blood

Mural in the Villa of Mysteries in Pompeii, said to incorporate the Dragon’s Blood pigment. (via Wikimedia)
“[Elephants] have continual warre against Dragons, which desire their blood, because it is very cold: and therefore the Dragon lying awaite as the Elephant passeth by, windeth his taile, being of exceeding length, about the hinder legs of the Elephant, and when the Elephant waxeth faint, he falleth down on the serpent, being now full of blood, and with the poise of his body breaketh him: so that his owne blood with the blood of the Elephant runneth out of him mingled together, which being colde, is congealed into that substance which the Apothecaries call Sanguis Draconis, that is Dragons blood, otherwise called Cinnabaris.”As freaking exciting as a battle between an elephant and dragon would be, the pigment was in actuality made from a Southeast Asian tree — though the story certainly helped hype it to outside buyers, and its blood red color was popular in the ancient world. It faded out of mainstream popularity around the 19th century, probably alongside the very much waning fascination with elephant vs. dragon battles.
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Mummy Brown

Martin Drölling, “L’intérieur d’une cuisine” (1815), believed to have been painted with Mummy Brown (via the Louvre)
“We might have a few odd limbs lying around somewhere, but not enough to make any more paint.”
Indian Yellow
Here’s another curious, and unsettling, pigment tip from Twitter on Indian Yellow. According to Philip Ball’s Bright Earth: Art and the Invention of Color, the vivid color of Indian Yellow was a source of mystery until the late 19th century. It turned out that the yellow color came from the urine of cattle in the Bihar province of India that were fed only mango leaves and water. The mistreatment of the animals led to the color being illegal and it vanished by 1908.Scheele’s Green
From the comments, we got a tip on Scheele’s Green. The yellow-green pigment was a cupric hydrogen arsenite, which was very toxic, yet made it into not just paintings, but candles, wallpaper, and children’s toys. In one incident at a Christmas party, a candle dyed with the color poisoned children, and other 19th century incidents include women in green dresses passing out and those using it to print newspapers suffering from its effects. The arsenic vapors also are believed by some to have played a role in the death of Napoleon, who lived in a room paintly brightly green, his favorite color, as traces of arsenic were found in his hair.http://hyperallergic.com/74661/the-colorful-stories-of-5-obsolete-art-pigments/

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