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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. [2] It ranges in colour from yellow to deep orange or brown.
Golden ochre has been known and widely used as a stable, reliable and inexpensive pigment for any finishing, household and decorative purposes, suitable for painting both interior and exterior work. It does not fade and can withstand almost any weather conditions.
Attic ochre or attic yellow ocher (Latin: Sil atticum) — the historically known variety of ochre, which had a bright lemon yellow color, was considered the best and most expensive type of ochre in Ancient Greece and Rome. Attic ochre was used mainly for high-quality finishing work or decoration of household items.
Ochre, iron oxide, was the first color of paint. [7] A favored blue pigment was derived from lapis lazuli. Pigments based on minerals and clays often bear the name of the city or region where they were originally mined. Raw sienna and burnt sienna came from Siena, Italy, while raw umber and burnt umber came from Umbria. These pigments were ...
Ochre is a clay that is colored by varying amounts of hematite, varying between 20% and 70%. [9] Red ochre contains unhydrated hematite, whereas yellow ochre contains hydrated hematite (Fe 2 O 3 · H 2 O). The principal use of ochre is for tinting with a permanent color. [9]
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What is The Pink Stuff and how does it work? Made mostly of baking soda, quartz, and soap, The Pink Stuff works as a mild abrasive that gently wears away stuck-on stains. The tiny quartz particles ...
[1] [2] Other earth pigments include the green earth pigments or terres vertes, blue earth pigments such as vivianite-based "blue ochre", white earth pigments such as chalk, and black earth pigments such as charcoal. [3] [4] Earth pigments are known for their fast drying time in oil painting, relative inexpensiveness, and lightfastness. Cave ...