Meaning & use
geode
Last updated
A hollow rock lined with crystals or mineral matter on the inside.
See it in a sentence
When they cracked open the geode, sparkling purple crystals lined its inside.
The museum displayed a giant geode filled with quartz crystals.
A note on using this word
Geodes often look like ordinary rocks on the outside, which is part of what makes cracking one open so surprising.
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