Recent Examples on the WebThe pre-1980 cone, which took shape in just the past 2,500 years, consisted in part of mountain-building andesite rocks.
Steve Olson, Scientific American, 1 Nov. 2017 The main cone is made of andesite, dacite, and rhyodacite.
Jennifer Earl, Fox News, 16 May 2018
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'andesite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.