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  • ...name="Norrby" /> the others being [[caesium]], [[francium]], [[gallium]], and [[rubidium]]. ...mercuric sulfide]]), which is the source of the red pigment [[vermilion]], and is mostly obtained by reduction from cinnabar. Cinnabar is highly toxic by
    69 KB (10,077 words) - 21:35, 20 September 2010