amygdaloidal
adjective
amyg·da·loi·dal
ə-ˌmig-də-ˈlȯi-dᵊl 
: of, being, or containing small cavities in igneous rock that are filled with deposits of different minerals (such as chalcedony)
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“Amygdaloidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amygdaloidal. Accessed 24 Jun. 2025.
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