👉 Selenian is a term used in geology to describe an igneous rock that is composed predominantly of silicate minerals. These rocks are often found in areas with high levels of sulfur dioxide (SO2) emissions, which can be due to industrial activities, natural processes such as volcanic eruptions or human activities like mining and quarrying. Selenian rocks may also contain other minerals such as quartz, feldspar, and mica, depending on the source of the SO2 emissions.
