Definify.com
Webster 1913 Edition
Nontronite
Non′tro-nite
,Noun.
[So called because found in the arrondissement of
Nontron
, France.] (Min.)
A greenish yellow or green mineral, consisting chiefly of the hydrous silicate of iron.
Definition 2024
nontronite
nontronite
English
Noun
nontronite (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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