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Hollandite (chemical formula: Ba(Mn4+6Mn3+2)O16) is a
manganese oxide mineral. Its
structure consists of
double chains of MnO6
octahedra delimiting 2 ×...
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Psilomelane is a
group name for hard
black manganese oxides including hollandite and romanechite.
Psilomelane consists of
hydrous manganese oxide with...
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accommodate metal ions such as
silver or barium. α-MnO 2 is
often called hollandite,
after a
closely related mineral.
Naturally occurring manganese dioxide...
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laboratories in
Lucas Heights.
Synroc is
composed of
three titanate minerals –
hollandite,
zirconolite and
perovskite – plus
rutile and a
small amount of metal...
- Hiärneite
Hibonite Hidalgoite Hilgardite Hisingerite Hodgkinsonite Hoelite Hollandite Holmquistite Homilite Hopeite Hornblende (series of amphiboles) Howlite...
- 1016/0025-5408(80)90076-8. Latroche, M, Brohan, L, Marchand, R,
Tournoux (1989). "New
hollandite oxides: TiO2(H) and K0.06TiO2".
Journal of
Solid State Chemistry. 81 (1):...
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common manganese minerals.
Pyrolusite occurs ****ociated with manganite,
hollandite, hausmannite, braunite, cryptomelane, chalcophanite, goethite, and hematite...
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crystal structure. The
crystal structure of β-FeOOH (akaganeite) is that of
hollandite or BaMn 8O 16. The unit cell is
tetragonal with a = 1.048 and c = 0.3023...
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yellow streak. Its
crystal structure is
monoclinic and
similar to that of
hollandite BaMn 8O 16,
characterised by the
presence of
tunnels parallel to the c-axis...
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Cryptomelane (K(Mn4+,Mn2+)8O16) is the pot****ium
endmember of the
hollandite group, a
family of
tectomanganates with a 2 × 2
tunnel structure. In 1942...
