pyrite

noun
py·​rite | \ ˈpī-ˌrīt How to pronounce pyrite (audio) \

Definition of pyrite

: a common mineral that consists of iron disulfide, has a pale brass-yellow color and metallic luster, and is burned in making sulfur dioxide and sulfuric acid

Examples of pyrite in a Sentence

Recent Examples on the Web The mineral world's champion of diverse origins is the humble pyrite (FeS2), known by many as Fool's Gold. David Bressan, Forbes, 2 July 2022 And Mary and Jesus are given natural (if irregular) halos by glimmering gold pyrite specks in the lapis. Judith H. Dobrzynski, WSJ, 12 Mar. 2022 If anyone tried to tamper with the master image (by, say, transforming the pyrite of a stringy-haired goatee guy into the gold of an alien), a skeptic could double-check the image by running it through that algorithm. Sandra Upson, Wired, 11 Nov. 2021 The tunnel’s walls were decorated with pyrite, or fool’s gold, which reflected firelight to create the illusion of a sky dotted with stars. Livia Gershon, Smithsonian Magazine, 26 Aug. 2021 Geology has found tiny amounts of gold can be trapped inside pyrite. David Bressan, Forbes, 27 June 2021 The company dumped iron pyrite cylinders into the marsh and later manufactured fertilizers, herbicides and pesticides. Bob Egelko, SFChronicle.com, 5 Jan. 2021 The company dumped iron pyrite cinders into the marsh and later manufactured fertilizers, herbicides and pesticides there. Sarah Ravani, SFChronicle.com, 15 Dec. 2020 The company dumped iron pyrite cinders into the marsh and later manufactured fertilizers, herbicides and pesticides there. Sarah Ravani, SFChronicle.com, 15 Dec. 2020 See More

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

First Known Use of pyrite

1741, in the meaning defined above

History and Etymology for pyrite

Latin pyrites

Learn More About pyrite

Dictionary Entries Near pyrite

pyritaceous

pyrite

pyrites

See More Nearby Entries 

Statistics for pyrite

Cite this Entry

“Pyrite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrite. Accessed 27 Sep. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on pyrite

Britannica.com: Encyclopedia article about pyrite

WORD OF THE DAY

Test Your Vocabulary

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!