Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Amygdaloidal Structure

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_54
The pores of volcanic rocks are called an amygdaloidal structure when they are filled with minerals that precipitated in a later stage. The fillings are usually calcite, zeolite, chalcedony, quartz and chlorite, which are common in basalt. In some geoparks with basalt, these structures tend to attract the interest of tourists (Fig. 16).
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