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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Hiärneite Hibonite Hidalgoite Hilgardite Hisingerite Hodgkinsonite Hoelite Hollandite Holmquistite Homilite Hopeite Hornblende (series of amphiboles) Howlite...
42 KB (2,782 words) - 13:55, 7 October 2024
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 associated 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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laboratories in Lucas Heights. Synroc is composed of three titanate minerals – hollandite, zirconolite and perovskite – plus rutile and a small amount of metal...
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raffinate) from a light-water reactor. The main minerals in this Synroc are hollandite (BaAl2Ti6O16), zirconolite (CaZrTi2O7) and perovskite (CaTiO3). The zirconolite...
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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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apatite, REE-rich phosphates (monazite, daqingshanite), potassian barian hollandite group minerals, Nb-bearing rutile and Mn-bearing ilmenite. Kimberlites...
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Coronadite is the lead endmember of the hollandite group, a family of tectomanganates with a 2 × 2 tunnel structure. The mineral was named after Francisco...
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(Na 4Mn 14O 27•9H 2O) coronadite (PbMn 8O 16) cryptomelane (KMn 8O 16) hollandite (BaMn 8O 16) romanechite ((Ba,H 2O)Mn 5O 10) todorokite ((Ba,Mn,Mg,Ca...
14 KB (1,583 words) - 21:43, 13 August 2024
Cryptomelane (K(Mn4+,Mn2+)8O16) is the potassium endmember of the hollandite group, a family of tectomanganates with a 2 × 2 tunnel structure. In 1942...
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"Synthesis and crystal structure of BaRu6O12: An ordered stoichiometric hollandite". Materials Research Bulletin. 20 (6): 705–713. doi:10.1016/0025-5408(85)90149-7...
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Science by London University in 1909. He first described the mineral Hollandite in 1906 and the mineral Fermorite, discovered in 1910, is named after...
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Ht Hydroxylhedyphane Hhdy Halite Hl Hedleyite Hdl Heulandite-Sr Hul-Sr Hollandite Hol Hyalotekite Hya Hydroxylherderite Hhd Hallimondite Hll Hedyphane Hdp...
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medium-sized) cations; tunnel structures: 05 Ankangite, 05 Coronadite, 05 Hollandite, 05 Manjiroite, 05 Mannardite, 05 Redledgeite, 05 Priderite, 05 Henrymeyerite...
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columbite-(Fe), columbite-(Mn), ernienickelite, native gold, gorceixite, hollandite, microcline, mitridatite, monazite-(Ce), muscovite, natrophilite, nontronite...
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Ferricopiapite (copiapite: 1939) 7.DB.35 [139] [140] [141] Ferricoronadite (hollandite, coronadite: IMA2015-093) 4.DK. [142] [no] [no] (Pb(Mn4+6Fe3+2)O16) Ferrierite...
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—— (1943). "The chemical relationship of cryptomelane (psilomelane), hollandite, and coronadite". American Mineralogist. 28 (9–10): 497–506. —— (1944)...
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occupied by the smaller Mn4+ cations. This structure is similar to that of hollandite (Ba,Mn2+)Mn4+7O16 and romanèchite (Ba,H2O)2(Mn4+,Mn3+)5O10, but with larger...
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[971] [972] [973] (IUPAC: pentacopper tetrahydro diarsenate) Coronadite (hollandite, coronadite: 1904) 4.DK.05a [974] [975] [976] (IUPAC: lead hexamanganese(IV)...
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synthesis of manganese oxides. He also discussed the tunnel structure of hollandites and todorokites along with the interlayer spacings of managanese oxides...
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(joaquinite: IMA1979-080 Rd) 9.CE.25 [1,018] [1,019] [1,020] Strontiomelane (hollandite, coronadite: IMA1995-005) 4.DK.05a [1,021] [1,022] [1,023] (IUPAC: strontium...
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[no] [no] Ajoite (ajoite: 1958) 9.EA.70 [128] [129] [130] Akaganéite (hollandite, coronadite: IMA1962-004) 4.DK.05 [131] [132] [133] Akaogiite (baddeleyite:...
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(IMA2003-009) 4.GB.70 [421] [422] [423] ((UO2)1.75Ca0.25TiO4·3H2O) Hollandite (hollandite, coronadite: IMA2012 s.p., 1906 Rd) 4.DK.05a [424] [425] [426] (IUPAC:...
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IMA2009-027 (Fe,Mg)Al12O19 Cryptomelane group (Hard black, fine-grained) Hollandite Ba(Mn4+,Mn2+)8O16, Cryptomelane K(Mn4+,Mn2+)8O16, Manjiroite (Na,K)(Mn4+...
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(IMA2012 s.p.), hydrotalcites (IMA2012 s.p.), garnets (IMA2013 s.p.), hollandites (coronadite and priderite groups; IMA2013 s.p.), epidotes (IMA2016 s...
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Holcodiscus Holcolissoceras Holcophylloceras Holcolytoceras Holcoptychites Hollandites Holzapfeloceras Holzbergia Homerites Homoceras Homoceratoides Homoeoplanulites...
65 KB (2,780 words) - 20:33, 4 September 2024