Keyword Analysis & Research: ocher
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Ochre - Wikipedia
https://en.wikipedia.org/wiki/Ochre
Ochre (/ ˈ oʊ k ər / OH-kər; from Ancient Greek ὤχρα (ṓkhra), from ὠχρός (ōkhrós) 'pale'), iron ochre, or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. It ranges in colour from yellow to deep orange or brown.
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Ocher Definition & Meaning - Merriam-Webster
https://www.merriam-webster.com/dictionary/ocher
noun. ˈō-kər. variants or ochre. 1. : an earthy usually red or yellow and often impure iron ore used as a pigment. 2. : the color of ocher. especially : the color of yellow ocher. ocherous. ˈō-k (ə-)rəs. …
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Ochre - The Oldest Known Natural Pigment in the World
https://www.thoughtco.com/ochre-the-oldest-known-natural-pigment-172032
Jul 3, 2019 · Ochre (rarely spelled ocher and often referred to as yellow ochre) is one of a variety of forms of iron oxide which are described as earth-based pigments. These pigments, used by ancient and modern artists, are made of iron oxyhydroxide, which is to say they are natural minerals and compounds composed of varying proportions of iron (Fe 3 or Fe ...
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Explore the World of Yellow Ochre - Natural Pigments
https://www.naturalpigments.com/artist-materials/yellow-ochre-a-comprehensive-guide
Feb 19, 2023 · Ocher is a type of natural earth pigment, a group of pigments that include yellow ocher, red ocher, purple ocher, sienna, and umber. Ocher is composed of iron oxide, clay, and silica. The amount of each component in the pigment affects its color and properties.
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Ochre | Facts, Definition, & Examples | Britannica
https://www.britannica.com/topic/ochre
Mar 4, 2018 · Category: Science & Tech. Related Topics: See all related content →. ochre, a native earth coloured with hydrated iron oxide. It varies in colour from pale yellow to deep red, brown, and violet. There are two kinds: one has a clayey basis, while the other is a chalky earth. The former variety is in general the richer and purer in colour of the two.
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How Ocher Becomes Pigment: The Process of Natural Art Materials
https://www.earthpigments.com/blog/how-ocher-becomes-pigment-the-process-of-natural-art-materials/
When we hear the word Ocher, many of us imagine a color akin to a rusty mustard shade. However, it’s not just a single hue: it’s also a popular Pigment option for artists. Before it encounters any form of manipulation by human hands, Ocher is merely earth.
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OCHER | English meaning - Cambridge Dictionary
https://dictionary.cambridge.org/dictionary/english/ocher
noun [ U ] US (also mainly UK ochre) us / ˈoʊ.kɚ / uk / ˈəʊ.kə r/ Add to word list. a yellowish-orange color, or a substance obtained from earth that is used for giving this color to paints. SMART …
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Ochre: The world's first red paint | Live Science
https://www.livescience.com/64138-ochre.html
Nov 20, 2018 · Ochre (pronounced OAK-er) is clay pigmented by hematite, a reddish mineral that contains oxidized iron, which is iron that's been mixed with oxygen, said Paul Pettitt, a professor of paleolithic...
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What the Ancient Pigment Ochre Tells Us About the Human Mind
https://www.discovermagazine.com/planet-earth/prehistoric-use-of-ochre-can-tell-us-about-the-evolution-of-humans
Nov 15, 2019 · 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.
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Ochre - Simple English Wikipedia, the free encyclopedia
https://simple.wikipedia.org/wiki/Ochre
Ochre or Ocher is a golden-yellow or light yellowish brown colour. The word is from the Greek ochros , meaning "yellow". Ochre is natural earth pigment containing hydrated iron oxide .
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