cryolite

noun
cryo·​lite | \ ˈkrī-ə-ˌlīt How to pronounce cryolite (audio) \

Definition of cryolite

: a mineral consisting of a fluoride of sodium and aluminum found especially in Greenland usually in white cleavable masses and formerly used as a source of aluminum

Examples of cryolite in a Sentence

Recent Examples on the Web Scattered on the rocky shore were little white chunks of cryolite, a mineral once used in the production of aluminum. Katie Lockhart, Smithsonian Magazine, "How This Abandoned Mining Town in Greenland Helped Win World War II," 28 Dec. 2019 His father worked for the Danish cryolite mining company in control of operations in Ivittuut, called Kryolitselskabet Øresund. Katie Lockhart, Smithsonian Magazine, "How This Abandoned Mining Town in Greenland Helped Win World War II," 28 Dec. 2019 Founded in 1854, the town of Ivittuut (formerly Ivigtut) once held the world’s largest reserve of naturally occurring cryolite. Katie Lockhart, Smithsonian Magazine, "How This Abandoned Mining Town in Greenland Helped Win World War II," 28 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cryolite.' 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 cryolite

1800, in the meaning defined above

History and Etymology for cryolite

borrowed from German Chryolit or French chryolithe, from chryo- (unetymologically for cryo- cryo-) + -lit, -lithe -lite

Note: The mineral was first described and apparently named by the Danish physician Peter Christian Abildgaard (1740-1801) in a report to Allgemeines Journal der Chemie, vol. 2 (1799), p. 502: "Zugleich theilte er auch eine Nachricht von einer vor wenigen Jahren aus Grönland nach Dänemark gebrachten besonders weissen spathartigen Miner mit. Einer damit angestellten Untersuchung zu folge bestand sie aus Thonerde und Flussspathsäure. Eine Verbindung, von welcher noch kein ähnliches Beyspiel im Mineralreich vorgekommen ist. Sie hat den Namen Chryolit erhalten, weil sie vor dem Löthrohre wie gefrorne Salzlauge schmilzt." ("At the same time he [Professor Abildgaard] has communicated a report about a particularly white spar-like ore brought to Denmark from Greenland several years ago. The result of an investigation undertaken for the purpose is that it consists of alumina and hydrofluoric acid. A combination for which a like example has not yet been found in the mineral kingdom. It has received the name cryolite because on exposure to the blowpipe it melts into a sort of frozen brine.")

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The first known use of cryolite was in 1800

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Cite this Entry

“Cryolite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cryolite. Accessed 26 Feb. 2021.

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Britannica.com: Encyclopedia article about cryolite

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