Crystal Opal

SiO2·nH2O

Where it forms, where it's found

6recorded occurrences
Source · OpenStreetMap

Literature, links & citation

Citations
  1. 2008Kostov, Rusian I. (2008) Orphic Lithica As A Source Of Late Antiquity Mineralogical Knowledge. Annual Of The University Of Mining And Geology “ST. Ivan Rilski”, 51 (1) 109-115
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Crystal Opal — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/crystal-opal-8003},
  note      = {Accessed 2026-05-11}
}