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An obsolete pigment banned early in the 20th century due to the cruelty involved in it’s manufacture. It was made in India by force feeding cows mango leaves, and the pigment was made from the cattle’s urine. For many years the source was unknown, and even after it’s discovery and the campaign to discontinue it, it remained an obscure and secretive industry.
Although an attractive golden yellow, the pigment proved to be very sensitive to light and lacked the permanence required for artists colors, so perhaps the ban was good for the artists as well as the cows. Any colors with this name these days are made with alternative pigments.
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