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  4. Materials (hierarchy name)
  5. materials (substances)
  6. [materials by composition]
  7. inorganic material
  8. glass (material)
  9. [glass by composition or origin]
  10. opaque red glass
  11. haematinum
Scope note
An Egyptian and Roman glass with a blood red color created by the dispersion of cuprous oxide crystals in black glass.
Accepted term: 15-Jul-2024