volcanic glass


Definition of volcanic glass

: natural glass produced by the cooling of molten lava too rapidly to permit crystallization

Examples of volcanic glass in a Sentence

Recent Examples on the Web Gone were the bouquets of tube worms, whirling octopuses, and meandering fish, all replaced by gleaming curtains of volcanic glass. Sabrina Imbler, The Atlantic, "An Epic Journey to Adulthood Begins in the Intestines of a Deep-Sea Fish," 16 Feb. 2021 Going into Wednesday, the U.S. Geological Survey is warning residents and visitors about high levels of volcanic gas, ash and volcanic glass particles in the air, which can cause skin, eye and respiratory irritation. Editors, USA TODAY, "Vaccine for Fauci, DACA court hearing, gift shipping deadlines: 5 things to know Tuesday," 22 Dec. 2020 The authors suggest that the putative water is most likely stored in naturally occurring volcanic glass or sandwiched between microscopic grains of rock dust. Leonard David, Scientific American, "Water Found in Sunlight and Shadow on the Moon," 26 Oct. 2020 Within hours, if not minutes, the land would have been pummeled by black volcanic glass that rained from above, killing animals such as rhinoceroses, camels, and horses that roamed the region, and destroying plants. Shannon Hall, Scientific American, "Biggest Ever Yellowstone Eruption Revealed," 15 June 2020 Carved from obsidian, or volcanic glass, thousands of the triangular objects, known as mata'a, litter the surface of the island. Fox News, "Easter Island discovery: Experts shed new light on the mystery of the civilization’s 'collapse'," 11 Feb. 2020 Volcanic ash is typically a mixture of volcanic glass, minerals or crystals and other rock fragments expelled during the eruption. Amy Gunia, Time, "Taal Volcano in the Philippines Has a History of Deadly Eruptions. Here's What Could Happen Next," 14 Jan. 2020 As minutes became hours, waves choked with shards of volcanic glass and splintered rock rippled back and forth, coating the peaks in a layer of impact rock called suevite, the scientists said. Fox News, "Scientists uncover new evidence of the asteroid that killed off the dinosaurs," 10 Sep. 2019 Strands of volcanic glass called as Pele's hair was accumulating on the ground in Leilani Estates and surrounding neighborhoods, and winds may blow lighter particles farther away, scientists said. Caleb Jones, Fox News, "Current lava flows are hottest, fastest of latest eruption," 1 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'volcanic glass.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of volcanic glass

1780, in the meaning defined above

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Time Traveler for volcanic glass

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The first known use of volcanic glass was in 1780

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Cite this Entry

“Volcanic glass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/volcanic%20glass. Accessed 15 May. 2021.

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More from Merriam-Webster on volcanic glass

Britannica.com: Encyclopedia article about volcanic glass

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