nontronite

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noun

An iron-rich clay mineral of the montmorillonite group

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Meanings

nounnontronite (countable and uncountable, plural nontronites)

plural nontronites

  1. countableuncountablechemistryAn iron-rich clay mineral of the montmorillonite group

    Nontronite, a variety of chloropal occurs as a light yellow powder in druses of the North Conway granite (99, p. 312).

    1969, T. R. Meyers, The Geology of New Hampshire: Minerals and mines, page 18
Cite this entry
APA

nontronite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/nontronite

MLA

“nontronite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nontronite. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “nontronite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/nontronite.

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