Definition, Meaning & Synonyms

geode

noun
/ˈdʒiːoʊd/
Definition
A geode is a rounded, hollow rock that is typically lined with crystals or mineral matter inside.
Examples
  • The geode sparkled beautifully when cut open, revealing its stunning amethyst crystals.
  • Many rock collectors enjoy finding geodes during their geological explorations.
  • Some geodes contain quartz or calcite, showcasing a variety of colors and patterns.
Meaning
Geodes are often found in volcanic or sedimentary rocks and form when mineral-rich water seeps into the rock and crystallizes over time.
Synonyms
  • Crystal cavity
  • Mineral pocket
  • Hollow rock