Thunder Egg

Also known as
  • Thunderegg

Where it forms, where it's found

21recorded occurrences
Source · OpenStreetMap

Varieties

Synonyms

  • Thunderegg

Literature, links & citation

Citations
  1. 2005en.wikipedia.org (n.d.) https://en.wikipedia.org/wiki/Thunderegg
  2. 2010Colburn, Robert (2010) The Formation of Thundereggs (Lithophysae). Kasper Jasper Press.
  3. 2013Crosby, Dave (2013) Reading Thundereggs. https://www.mindat.org/article.php/1675/Reading+Thundereggs
  4. 2013Breitkreuz, Christoph (2013) Spherulites and lithophysae—200 years of investigation on high-temperature crystallization domains in silica-rich volcanic rocks. Bulletin of Volcanology, 75 (4). doi:10.1007/s00445-013-0705-6DOI: 10.1007/s00445-013-0705-6
  5. 2020Hanson, Sarah L. (2020) Word to the Wise: Spherulites and Lithophysae. Rocks & Minerals, 95 (2) 183-187 doi:10.1080/00357529.2019.1641031DOI: 10.1080/00357529.2019.1641031
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Thunder Egg — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/thunder-egg-31316},
  note      = {Accessed 2026-05-11}
}