cummingtonite

C3U1M3M3I1N1G2T1O1N1I1T1E1
/ˈkʌm.ɪŋ.təˌnaɪt/

noun

A mineral, magnesium-iron silicate hydroxide, (Mg,Fe)₇Si₈O₂₂(OH)₂.

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Meanings

nouncummingtonite (countable and uncountable, plural cummingtonites)

plural cummingtonites

  1. countableuncountablechemistryA mineral, magnesium-iron silicate hydroxide, (Mg,Fe)₇Si₈O₂₂(OH)₂.

Origin

From Cummington + -ite, since it was originally discovered in Cummington, Massachusetts.

Full word history & related roots →

Translations

Dutch cummingtoniet
  • cummingtonietmineral magnesium-iron silicate hydroxide
Finnish cummingtoniitti
  • cummingtoniittimineral magnesium-iron silicate hydroxide
French cummingtonite
  • cummingtonitemineral magnesium-iron silicate hydroxide
German Cummingtonit
  • Cummingtonitmineral magnesium-iron silicate hydroxide
Indonesian cummingtonit
  • cummingtonitmineral magnesium-iron silicate hydroxide
Italian cummingtonite
  • cummingtonitemineral magnesium-iron silicate hydroxide
Spanish cummingtonita
  • cummingtonitamineral magnesium-iron silicate hydroxide
Vietnamese cumingtonit
  • cumingtonitmineral magnesium-iron silicate hydroxide
Cite this entry
APA

cummingtonite. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cummingtonite

MLA

“cummingtonite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cummingtonite. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “cummingtonite,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/cummingtonite.

Source: cummingtonite on Wiktionary, CC BY-SA 4.0.