plural -s
: a mineral Na3Mg(PO4)(CO3) consisting of a rare phosphate and carbonate of sodium and magnesium

Word History


Wilmot H. Bradley †1979 American geologist + -ite entry 1

Note: See Joseph J. Fahey and George Tunell, "Bradleyite, a New Mineral, Sodium Phosphate-Magnesium Carbonate," American Mineralogist, vol. 26, no. 11 (November, 1941), pp. 646-50. According to the authors, "the new mineral is named bradleyite in honor of Dr. Wilmot H. Bradley of the Geological Survey, U.S. Department of the Interior, whose many years of productive geological investigation in this area [the Green River formation, Wyoming] well merit this recognition."

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near bradleyite

Cite this Entry

“Bradleyite.” Dictionary, Merriam-Webster, Accessed 19 Jul. 2024.

Love words? Need even more definitions?

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