Nontronite
Nontronite is the iron(III) rich member of the smectite group of clay minerals. Nontronites typically have a chemical composition consisting of more than ~30% Fe2O3 and less than ~12% Al2O3 (ignited basis). Nontronite generally does not exist in economic deposits like montmorillonite, although it is not an uncommon clay mineral. Like montmorillonite, nontronite can have variable amounts of adsorbed water associated with the interlayer surfaces and the exchange cations.
primaryTopic
Nontronite
Nontronite is the iron(III) rich member of the smectite group of clay minerals. Nontronites typically have a chemical composition consisting of more than ~30% Fe2O3 and less than ~12% Al2O3 (ignited basis). Nontronite generally does not exist in economic deposits like montmorillonite, although it is not an uncommon clay mineral. Like montmorillonite, nontronite can have variable amounts of adsorbed water associated with the interlayer surfaces and the exchange cations.
has abstract
Het mineraal nontroniet is een ...... neralen tot de smectiet-groep.
@nl
La nontronita es un mineral de ...... oropal o hidroferripirofilita.
@es
La nontronite è un minerale, u ...... logica di Nontron, in Francia.
@it
Nontronit ist ein Mineral aus ...... st dagegen immer grünlichweiß.
@de
Nontronit, montmorillonit żela ...... jscowości Nontrone we Francji.
@pl
Nontronite is the iron(III) ri ...... compounds in the environment.
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Wikipage page ID
Wikipage revision ID
742,333,671
birefringence
δ = 0.030 - 0.035
Caption
Nontronite from Slovakia
category
Phyllosilicates
Smectite group
cleavage
color
Yellow, olive-green, green, orange, brown
formula
gravity
habit
luster
Earthy to dull
mohs
opticalprop
refractive
nα = 1.530 - 1.580 nβ = 1.555 - 1.612 nγ = 1.560 - 1.615
streak
system
Unknown space group
hypernym
comment
Het mineraal nontroniet is een ...... neralen tot de smectiet-groep.
@nl
La nontronita es un mineral de ...... oropal o hidroferripirofilita.
@es
La nontronite è un minerale, u ...... logica di Nontron, in Francia.
@it
Nontronit ist ein Mineral aus ...... ehörenden Gruppe der Smektite.
@de
Nontronit, montmorillonit żela ...... jscowości Nontrone we Francji.
@pl
Nontronite is the iron(III) ri ...... aces and the exchange cations.
@en
label
Nontroniet
@nl
Nontronit
@de
Nontronit
@pl
Nontronita
@es
Nontronite
@en
Nontronite
@it
wasDerivedFrom
depiction
isPrimaryTopicOf
name
Nontronite
@en