Merriam-Webster Logo
SINCE 1828
dictionary thesaurus view recents

xanthoconite

noun
Save Word
xan·​thoc·​o·​nite | \ zanˈthäkəˌnīt \
plural -s

Definition of xanthoconite

: a cochineal-red to orange-yellow to brown mineral Ag3AsS3 consisting of a silver arsenic sulfide and occurring in tabular crystals and often flat rhombohedrons — compare proustite

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!

History and Etymology for xanthoconite

German xanthokon xanthoconite (from xanth- + Greek konis dust) + English -ite; from the color of its streak powder

Keep scrolling for more

Learn More about xanthoconite

Statistics for xanthoconite

Cite this Entry

“Xanthoconite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/xanthoconite. Accessed 3 Jul. 2020.

Comments on xanthoconite

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

Show Comments  Hide Comments 

WORD OF THE DAY

stentorian

Listen to the pronunciation of stentorian

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

A More Exception(al) Quiz

  • hot dog hot dog hot dog hot dog cat
  • Which of the following words is not a synonym for ‘a young person’?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

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!

Words at Play
Ask the Editors
Word Games