fluorite

noun
fluo·rite | \ˈflu̇r-ˌīt, ˈflȯr-\

Definition of fluorite 

: a transparent or translucent mineral of different colors that consists of the fluoride of calcium and is used especially as a steelmaking flux and in the making of opalescent and opaque glasses

Examples of fluorite in a Sentence

Recent Examples on the Web

In a post on JAXA's website, Hayabusa 2 project manager Yuichi Tsuda likened the asteroid's strange, multifaceted shape to that of a crystal of the mineral fluorite or an abacus bead. David Freeman /, NBC News, "Japan's Hayabusa 2 space probe snuggles up to odd-looking asteroid," 26 June 2018 Several minerals redirect light from the sun, including calcite, agate and fluorite. Nola Taylor Redd, Smithsonian, "Could We See Glow-in-the-Dark Aliens From Earth?," 1 Aug. 2017

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

First Known Use of fluorite

1868, in the meaning defined above

History and Etymology for fluorite

Italian, from New Latin fluor

Keep scrolling for more

Learn More about fluorite

Statistics for fluorite

Look-up Popularity

Time Traveler for fluorite

The first known use of fluorite was in 1868

See more words from the same year

More from Merriam-Webster on fluorite

Britannica.com: Encyclopedia article about fluorite

Comments on fluorite

What made you want to look up fluorite? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

not any or not one

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

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!