Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese. It is a black, amorphous appearing...

investigated barium in pyrolusite: Scheele (1774). "Om brunsten, eller magnesia, och dess egenskaper" [On brown-stone [i.e., pyrolusite] or magnesia, and its...

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...

under the same conditions and having the same commercial applications as pyrolusite. It is found at many localities; amongst those which have yielded typical...

chert, producing conchoidal fracture. Dendritic manganese oxides such as pyrolusite and/or iron oxides such as limonite may precipitate along rock crevices...

aquarium fish. In 1659, Johann Rudolf Glauber fused a mixture of the mineral pyrolusite (manganese dioxide, MnO2) and potassium carbonate to obtain a material...

discovery. Scheele produced chlorine by reacting MnO2 (as the mineral pyrolusite) with HCl: 4 HCl + MnO2 → MnCl2 + 2 H2O + Cl2 Scheele observed several...

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...

association with calcite, barite, and siderite. Often associated with pyrolusite, braunite, hausmannite and goethite. Manganite occurs in specimens exhibiting...

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...

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...

associated with various iron oxides. Specific mineral varieties include pyrolusite, lithiophorite, nsutite, takanelite and vernadite. Wad can be considered...

red (iron oxide, hematite, or red ochre) and black (manganese dioxide, pyrolusite), though black from juniper or pine carbons has also been discovered....

are red, orange, or yellow, black gossans from manganese oxides such as pyrolusite, manganite, and especially psilomelane form at the oxidized portion of...

is used as flux for blast furnaces, while others such as wolframite, pyrolusite, and chromite are used in making ferrous alloys. Important non-ferrous...

sorosilicates) Purpurite Putnisite Pyrargyrite Pyrite Pyrochlore (mineral group) Pyrolusite Pyromorphite Pyrope Pyrophanite Pyrophyllite Pyroxene (group of silicate...

appropriate levels of manganese and smelting them directly, or by adding pyrolusite or manganite to previously smelted iron in a cupola furnace. Spathic iron...

Africa and Namibia where it is associated with other manganese oxides, pyrolusite and psilomelane and the iron-manganese mineral bixbyite. Wilhelm Haidinger...

Normal aurorite in calcite with pyrolusite Hydrous silver calcium manganese oxide, from Aurora Mine in the Treasure Hill district...

γ-MnOOH, and Their Relations to the Manganese Dioxides Ramsdellite and Pyrolusite". Journal of Solid State Chemistry. 133 (2): 486–500. doi:10.1006/jssc...

Example of a dendrite on pyrolusite....

potassium permanganate when he noted that manganese dioxide (as the mineral pyrolusite) could be reacted at high temperatures with alkali to obtain a material...

manufacturing Pyrolusite (MnO2) in oxidized manganese zones like laterites and skarns; manganite (MnO(OH)) and braunite (3Mn2O3 MnSiO3) with pyrolusite Mercury...

fillings in veins and vugs. It occurs in association with hollandite, pyrolusite, nsutite, braunite, chalcophanite, manganite and various other manganese...

Palladinite Pdn Pauladamsite Pad Phosphogartrellite Pgtl Pošepnýite Pšý Pyrolusite Pyl Palladium Pd Paulingite-Ca Pau-Ca Phosphohedyphane Phdy Posnjakite...

titanium; other examples include cassiterite (SnO2; ore of tin), and pyrolusite (MnO2; ore of manganese). In hydroxides, the dominant anion is the hydroxyl...

mineral. Akhtenskite is a polymorphous with the much more widespread pyrolusite. It occurs in mixtures with "psilomelane" (recently renamed to romanechite)...

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...

Typical associated minerals include hausmannite, galaxite, braunite, pyrolusite, coronadite, hematite and magnetite. It is a ferrimagnetic substance,...

Fe2O3); the yellows from limonite (FeO(OH)·nH2O); and the purples are from pyrolusite (MnO2). More than 400 native plant species live in the park. The three...