sarmientite

noun

sar·​mi·​en·​tite

ˌsärmēˈent‧ˌīt,

-n‧ˌtīt

plural -s

: a mineral Fe₂(AsO₄)(SO₄)(OH).5H₂O consisting of a hydrous basic arsenate and sulfate of iron

Word History

Etymology

Spanish sarmientita, from Sarmiento, town in Argentina + Spanish -ita -ite

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!