A  COLOUR  STUDY Vermilion HgS  ·  cinnabar  ·   shu The most enduring of the bright reds is made from the marriage of two poisons — quicksilver and brimstone, mercury and sulphur — ground from a stone, or wedded over a slow fire. WHERE  IT  IS  MET  WITH In the stone — cinnabar: dull and heavy, the colour of dried blood, until it is ground. In the making — mercury wed to sulphur; the powder turns black, then sublimes to red. In use — the seal, the lacquer, the gate, ; a red once kept, like gold, for what mattered. Two poisons — and it must be kept from the light, or in time it darkens. Even so, it has outlasted most of what it was laid upon. nocturne · edition xiii · vermilion made in the small hours of 23 June — Midsummer eve; tomorrow a red-letter day, and the page another colour listen ·