vesicular structure

small enclosed cavity found in some volcanic rock, such as basalt

en-US/vɪˈsɪkjʊlɚ ˈstɹʌkt͡ʃɚ/
en-GB/vɛˈsɪkjʊlə ˈstɹʌkt͡ʃə/

Категорії:

structure