Sinople

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Sinople (from Greek Σινωπίς "of Sinope") was a term for a kind of red earth used as a pigment in antiquity.

It can refer to:

  • sinople, also sinoper, a term for "red", and later "green" in heraldry, see Sinople (heraldry)
  • In mineralogy, sinople or Sinopia (Cinnabar, not to confound with the mineral Cinnabar) is a clay or quartz containing iron oxides, used to make the sinopia pigment
  • In cryptography, sinople is a 128-bit symmetric block cipher
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