andesite
noun
an·des·ite
ˈan-di-ˌzīt 
: an extrusive usually dark grayish rock consisting essentially of oligoclase or feldspar
Examples of andesite in a Sentence
Recent Examples on the Web
Featuring lots of timber and indigenous andesite stone, their low profiles create intimate communal spaces.
—
Kathryn Romeyn, Travel + Leisure, 23 Jan. 2025
Much of the area around the caldera is covered by basaltic andesite lava flows related to the magmatic system at Newberry, erupting as fissures and cinder cones along faults that cross the area.
—Erik Klemetti, Discover Magazine, 17 June 2024
It is carved from augite andesite, a dark black porous volcanic stone, according to the release.
—Irene Wright, Miami Herald, 13 May 2024
What looked like a sacrificial table of white sandstone, surrounded by andesite blocks, prompted Quisbert to speak of capacocha, an Inca ritual in which children of both sexes were selected for sacrifice.
—Aatish Taseer, New York Times, 9 Nov. 2023
The andesite magma from El Chichón has about 2.6 weight percent SO3, many times more than most magmas.
—Erik Klemetti, Discover Magazine, 28 Mar. 2012
The 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
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Kathryn Romeyn, Travel + Leisure, 23 Jan. 2025
Much of the area around the caldera is covered by basaltic andesite lava flows related to the magmatic system at Newberry, erupting as fissures and cinder cones along faults that cross the area.
—Erik Klemetti, Discover Magazine, 17 June 2024
It is carved from augite andesite, a dark black porous volcanic stone, according to the release.
—Irene Wright, Miami Herald, 13 May 2024
What looked like a sacrificial table of white sandstone, surrounded by andesite blocks, prompted Quisbert to speak of capacocha, an Inca ritual in which children of both sexes were selected for sacrifice.
—Aatish Taseer, New York Times, 9 Nov. 2023
The andesite magma from El Chichón has about 2.6 weight percent SO3, many times more than most magmas.
—Erik Klemetti, Discover Magazine, 28 Mar. 2012
The 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
Cite this Entry
“Andesite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/andesite. Accessed 31 Jul. 2025.
Copy CitationKids Definition
andesite
noun
an·des·ite
ˈan-di-zīt
: a usually dark grayish rock of feldspar that is formed from lava
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