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The Accrington Nori Brick works was temporarily re-opened in August 2009 only to close again that November, after a lifespan of 122 years. In 2013 the works was for sale. [ 2 ] Since 1982 the old quarries have been increasingly used for landfill of domestic waste from the north west region operated by the company SITA UK .
In order for all the colors to be spaced uniformly, it was found necessary to use a color wheel with five, non-arbitrary, equally spaced primary colors: red, yellow, green, blue, and purple. The color of the sample is the most chromatic (colorful) red in the sRGB gamut that falls in the hue of 5R (primary red) in the Munsell color space.
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The South Asian inhabitants of Mehrgarh also constructed air-dried mudbrick structures between 7000 and 3300 BC [9] and later the ancient Indus Valley cities of Mohenjo-daro, Harappa, [10] and Mehrgarh. [11] Ceramic, or fired brick was used as early as 3000 BC in early Indus Valley cities like Kalibangan. [12]
Cinnabar (/ ˈ s ɪ n ə ˌ b ɑːr /; from Ancient Greek κιννάβαρι (kinnábari)), [7] or cinnabarite (/ ˌ s ɪ n ə ˈ b ɑːr aɪ t /), also known as mercurblende is the bright scarlet to brick-red form of mercury(II) sulfide (HgS).
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Ochre pigment. 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]
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