volcanic glass

  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. igneous rock
  10. [igneous rock by origin]
  11. extrusive rock
  12. pyroclastic rock
  13. volcanic glass
Scope note
A volcanic igneous rock of vitreous or glassy texture; it is a natural glass produced by the cooling of molten lava, or some liquid fraction of it, too quickly to allow crystallization.
volcanic glass
Accepted term: 30-Sep-2024