Realgar

• Realgar is used in Medicine.

  Pliny’s Natural History treats sandarach/realgar among red arsenic minerals used in drugs and related preparations. A Roman-era pharmacological use of the red sulfide, not orpiment alone and not bare arsenic.

  from Pliny the Elder · Natural History, c. 77 CE

  used in · sourced · documented

• Realgar is used in Dye.

  Pliny’s Natural History treats sandarach/realgar among red arsenic pigments as well as among mineral drugs. A Roman-era pigment use of realgar, not the medicine seat already published and not orpiment as the yellow sulfide.

  from Pliny the Elder · Natural History, c. 77 CE

  used in · sourced · documented

• Realgar is historically related to Dye.

  In Merrifield's Original Treatises on the Arts of Painting, Realgar is listed among the trade lemmas and sits with Dye.

  from Mary Philadelphia Merrifield · Original Treatises on the Arts of Painting, 1849

  historically related to · sourced · documented

• Realgar is historically related to Orpiment.

  In Agricola’s De Re Metallica, realgar can be made from orpiment by heating the latter for five hours in a sealed crucible — realgar is prepared from that orpiment.

  from Georgius Agricola; Herbert Clark Hoover and Lou Henry Hoover (translation) · De Re Metallica, 1556 Latin; Hoover English 1912

  historically related to · sourced · documented

Roman religion

• Realgar appears in Roman religion.

  Pliny’s Natural History seats realgar among red arsenic sulfide pigments of Roman craft speech beyond pharmacy/dye alone. A named realgar craft encyclopedia seat, not realgar medicine/dye already walked and not orpiment as the yellow sulfide alone.

  from Pliny the Elder · Natural History, c. 77 CE

  appears in · sourced · documented