Periodic Graphics: Lava and volcanic gases

Chemical educator and Compound Interest blogger Andy Brunning probes the molecular makeup of the molten rock and gases spewed by volcanoes

by Andy Brunning
July 8, 2018 | APPEARED IN VOLUME 96, ISSUE 28



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References used to create this graphic:

Chemical composition of volcanic gases

Pyroclastic flows

Volcanoes, magma, and volcanic eruptions

What’s the difference between magma and lava?

Emissions from volcanoes

A collaboration between C&EN and Andy Brunning, author of the popular graphics blog Compound Interest

To see more of Brunning’s work, go to To see all of C&EN’s Periodic Graphics, visit


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