Editing Geode (section)

== Occurrence ==
Geodes are found where the geology is suitable with many of the commercially available ones coming from [[Brazil]], [[Uruguay]], [[Namibia]], and [[Mexico]].<ref name=":0" /> Large, [[amethyst]]-lined geodes are a feature of the basalts of the [[Paraná and Etendeka traps]] found in Brazil and Uruguay. Geodes are common in some formations in the United States (mainly in [[Indiana]], [[Iowa]], [[Missouri]], western [[Illinois]], [[Kentucky]], and [[Utah]]). Geodes are also abundant in the [[Mendip Hills]] in [[Somerset]], [[England]], where they are known locally as "potato stones".<ref>{{Cite web|url=http://www.dulcote.com/the-quarries.html|title=The Quarries|website=Dulcote, Somerset|access-date=2017-12-30}}</ref> The term geode generally describes hollow formations. If the rock is completely solid inside, this would be classified as a [[Nodule_(geology)|nodule]] or [[thunderegg]].<ref>{{Cite web |date= |title=Definition of Geode |url=https://www.mindat.org/glossary/geode |archive-url= |access-date=2023-05-22 |website=Mindat}}</ref>