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  • Miniatura para Pirolusita
    de minerales Pyrolusite (Mindat.org) Pyrolusite (Mineralienatlas) Pyrolusite mineral data (Webmineral) Rutile Group (Mindat.org) Pyrolusite (Handbook of…
    8 kB (703 palabras) - 14:12 2 jun 2024
  • Miniatura para Manganita
    γ-MnOOH, and their relations to the manganese dioxides ramsdellite and pyrolusite. Journal of Solid State Chemistry: 133: 486-500. Wikimedia Commons alberga…
    6 kB (600 palabras) - 18:18 24 ene 2024

Resultados de la Wikipedia en inglés.

  • Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese. It is a black, amorphous appearing…
    8 kB (776 palabras) - 10:45 17 feb 2024
  • investigated barium in pyrolusite: Scheele (1774). "Om brunsten, eller magnesia, och dess egenskaper" [On brown-stone [i.e., pyrolusite] or magnesia, and its…
    32 kB (3540 palabras) - 17:53 16 jun 2024
  • formula MnO 2. This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese and a component of manganese nodules…
    18 kB (1858 palabras) - 19:50 24 mar 2024
  • under the same conditions and having the same commercial applications as pyrolusite. It is found at many localities; amongst those which have yielded typical…
    5 kB (413 palabras) - 21:08 22 ene 2024
  • chert, producing conchoidal fracture. Dendritic manganese oxides such as pyrolusite and/or iron oxides such as limonite may precipitate along rock crevices…
    2 kB (263 palabras) - 13:52 27 jul 2023
  • aquarium fish. In 1659, Johann Rudolf Glauber fused a mixture of the mineral pyrolusite (manganese dioxide, MnO2) and potassium carbonate to obtain a material…
    47 kB (4817 palabras) - 08:18 9 jun 2024
  • discovery. Scheele produced chlorine by reacting MnO2 (as the mineral pyrolusite) with HCl: 4 HCl + MnO2 → MnCl2 + 2 H2O + Cl2 Scheele observed several…
    116 kB (12 989 palabras) - 04:08 11 jun 2024
  • are red, orange, or yellow, black gossans from manganese oxides such as pyrolusite, manganite, and especially psilomelane form at the oxidized portion of…
    3 kB (297 palabras) - 12:57 23 jul 2023
  • nature but far rarer in synthetic chemistry. The most common Mn ore, pyrolusite, is MnO2. It is the dark brown pigment of many cave drawings but is also…
    84 kB (9501 palabras) - 09:38 17 jun 2024
  • associated with various iron oxides. Specific mineral varieties include pyrolusite, lithiophorite, nsutite, takanelite and vernadite. Wad can be considered…
    1 kB (124 palabras) - 21:06 22 ene 2024
  • association with calcite, barite, and siderite. Often associated with pyrolusite, braunite, hausmannite and goethite. Manganite occurs in specimens exhibiting…
    6 kB (504 palabras) - 09:07 30 ene 2023
  • is used as flux for blast furnaces, while others such as wolframite, pyrolusite, and chromite are used in making ferrous alloys. Important non-ferrous…
    8 kB (807 palabras) - 16:58 27 abr 2024
  • red (iron oxide, hematite, or red ochre) and black (manganese dioxide, pyrolusite), though black from juniper or pine carbons has also been discovered.…
    42 kB (4861 palabras) - 08:06 13 may 2024
  • Manganosite, MnIIO Psilomelane, Ba(MnII)(MnIV)8O16(OH)4, or (Ba,H2O)2Mn5O10 Pyrolusite, MnIVO2 Manganese may also form mixed oxides with other metals : Bixbyite…
    2 kB (232 palabras) - 12:21 27 ene 2024
  • appropriate levels of manganese and smelting them directly, or by adding pyrolusite or manganite to previously smelted iron in a cupola furnace. Spathic iron…
    2 kB (192 palabras) - 01:12 2 nov 2023
  • Normal aurorite in calcite with pyrolusite Hydrous silver calcium manganese oxide, from Aurora Mine in the Treasure Hill district…
    13 kB (1647 palabras) - 14:19 20 jul 2023
  • sorosilicates) Purpurite Putnisite Pyrargyrite Pyrite Pyrochlore (mineral group) Pyrolusite Pyromorphite Pyrope Pyrophanite Pyrophyllite Pyroxene (group of silicate…
    41 kB (2732 palabras) - 20:21 2 jun 2024
  • Example of a dendrite on pyrolusite.…
    14 kB (1583 palabras) - 15:42 26 abr 2024
  • hydroxide 1310-97-0 MnOOH manganite 1310-98-1 MnO2 manganese dioxide pyrolusite 1313-13-9 MnO4− permanganate ion 14333-13-2 MnPb8(Si2O7)3 barysilate MnS…
    182 kB (107 palabras) - 13:33 17 abr 2024
  • Typical associated minerals include hausmannite, galaxite, braunite, pyrolusite, coronadite, hematite and magnetite. It is a ferrimagnetic substance,…
    3 kB (143 palabras) - 21:18 3 ene 2024
  • Ditetragonal dipyramidal 4/mmm D4h *224 [2,4] centrosymmetric rutile, pyrolusite, zircon P4/mmm, P4/mcc, P4/nbm, P4/nnc, P4/mbm, P4/mnc, P4/nmm, P4/ncc…
    5 kB (191 palabras) - 07:14 13 may 2024