-
octahedral sheet. The
octahedral sheet can be
dioctahedral or
trioctahedral. A
trioctahedral sheet has the
structure of a
sheet of the
mineral brucite, with...
- ion (the
apical oxygen ion) is
available to bond with the
trioctahedral sheet. The
trioctahedral sheet has the
structure of a
sheet of the
mineral brucite...
- bond with the
octahedral sheet. The
octahedral sheet in
biotite is a
trioctahedral sheet having the
structure of a
sheet of the
mineral brucite, with magnesium...
-
variation in
chemical composition from sepiolite, the most
magnesic and
trioctahedral endmember, to palygorskite, the
least magnesic, most Al- and Fe-bearing...
-
Saponite is a
trioctahedral mineral of the
smectite group. Its
chemical formula is Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2·n(H2O). It is
soluble in sulfuric...
- has the
first reported natural occurrence of the 6R
polytype for a
trioctahedral 1:1
layer silicate. Warr, L.N. (2021). "IMA–CNMNC
approved mineral symbols"...
-
Paragonite – NaAl2(AlSi3O10)(OH)2
Roscoelite – K(V3+,Al)2(AlSi3O10)(OH)2
Trioctahedral mica
group Aspidolite – NaMg3(AlSi3O10)(OH)2
Biotite subgroup – K(Fe2+...
-
structural unit of
serpentine is a
polar layer 0.72 nm thick. A Mg-rich
trioctahedral sheet is
tightly linked on one side to a
single tetrahedral silicate...
-
Hendricksite is a
member of the
trioctahedral micas group. The
mineral was
named by
Clifford Frondel and Jun Ito in
honor of
Sterling Brown Hendricks...
- smectites, such as montmorillonite,
nontronite and beidellite, and
trioctahedral smectites, such as saponite. In 2013,
analytical tests by the Curiosity...
