industrial jewel

  1. Home
  2. top of the aat hierarchies
  3. Materials Facet
  4. Materials (hierarchy name)
  5. materials (substances)
  6. [materials by composition]
  7. inorganic material
  8. rock (inorganic material)
  9. [rock by form]
  10. stone (worked rock)
  11. [stone by function]
  12. industrial jewel
Scope note
Hard stone, usually ruby and sapphire, used chiefly for bearings and impulse pins in instruments and for recording needles.
industrial jewel
Accepted term: 29-Apr-2024