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Red ★★★ 1991 , red a colour at the end of the spectrum next to orange and opposite violet, as the colour of blood, fire, or rubies. As a liturgical colour, red is u… Red Panda , Ailurus fulgens Cinnabar , cinnabar The commonest mercury mineral, HgS; sp. gr. 8.0–8.2; hardness 2.0–2.5; trigonal; scarlet-red to brownish-red; vermilion streak; adamantine l… scheelite , scheelite Mineral, CaWO4; sp. gr. 5.9–6.1; hardness 4.5–5.0; tetragonal; white, or sometimes shades of yellow, green, brown, or red; white streak; vi… New Red Sandstone , New Red Sandstone Name given to the terrestrial red-bed deposits that overlie the Carboniferous. These deposits are of Permo-Triassic age. Red Lead , red lead • n. a red form of lead oxide used as a pigment.
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