reddishochre
Reddish ochre is a natural clay earth pigment containing hydrated iron oxide. Its color ranges from yellow to deep orange or brown, and can also exhibit reddish tones depending on the specific mineral composition and processing. Historically, reddish ochre has been widely used as a coloring agent in paints, ceramics, and cosmetics. Its abundance and ease of extraction made it a valuable resource for ancient civilizations. The pigment is formed through the weathering of iron-rich rocks. The specific shade of reddish ochre is determined by the presence of hematite, which imparts a redder hue compared to limonite, which is more yellow. It is a stable and non-toxic pigment, contributing to its enduring popularity in various applications. In art, it is often used to create earthy tones and warm shadows. The term "ochre" itself is often used broadly to describe a range of natural yellow and brown earth pigments.