#earth_color  a colored mineral used as a pigment
  supertype:  mineral  pigment
  subtype:  sienna  an earth color containing ferric oxides; used as a pigment
     subtype:  burnt_sienna__burntsienna  a reddish-brown pigment produced by roasting sienna
     subtype:  raw_sienna__rawsienna  a yellowish-brown pigment made from untreated sienna
  subtype:  ochre__ocher  any of various earths containing silica and alumina and ferric oxide; used as a pigment
     subtype:  sinopis__sinopi__sinopia__sinoper  a red ocher formerly used as a pigment
     subtype:  yellow_ocher__yellow_ochre  pigment consisting of a limonite mixed with clay and silica
  subtype:  umber  an earth pigment
     subtype:  raw_umber  greenish brown pigment
     subtype:  burnt_umber  dark brown pigment obtained by heating umber

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