nontronite
English
Noun
nontronite (countable and uncountable, plural nontronites)
- (mineralogy) An iron-rich clay mineral of the montmorillonite group
- 1969, T. R. Meyers, The Geology of New Hampshire: Minerals and mines, page 18:
- Nontronite, a variety of chloropal occurs as a light yellow powder in druses of the North Conway granite (99, p. 312).
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Further reading
- David Barthelmy (1997–2023), “Nontronite”, in Webmineral Mineralogy Database.
- “nontronite”, in Mindat.org, Hudson Institute of Mineralogy, 2000–2023.