Pineapple Opal

Variety of
Opal
OpalSiO2 · nH2O

Where it forms, where it's found

2recorded occurrences
Source · OpenStreetMap

Literature, links & citation

Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Pineapple Opal — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/pineapple-opal-9810},
  note      = {Accessed 2026-05-11}
}