• Pyrolusite - Wikipedia

    en.wikipedia.org/wiki/Pyrolusite Pyrolusite is a mineral consisting essentially of manganese dioxide (Mn O 2) and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous, or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black streak, and readily soils the fingers.The specific gravity is about 4.8.
  • Pyrolusite | mineral | Britannica

    www.britannica.com/science/pyrolusite Pyrolusite, common manganese mineral, manganese dioxide (MnO2), that constitutes an important ore. Always formed under highly oxidizing conditions, it forms light-gray to black, metallic, moderately heavy coatings, crusts, or fibres that are alteration products of other manganese ores (e.g.,
  • Pyrolusite | Definition of Pyrolusite at Dictionary.com

    www.dictionary.com/browse/pyrolusite Pyrolusite definition, a common mineral, manganese dioxide, MnO2, the principal ore of manganese, used in various manufactures, as a decolorizer of brown or green tints in glass, and as a depolarizer in dry-cell batteries. See more.
  • Pyrolusite: The manganese mineral pyrolusite information ...

    www.minerals.net/mineral/pyrolusite.aspx Pyrolusite is the most common manganese mineral. It is one of several manganese oxide minerals, which are all dark gray to black in color and may be very difficult to distinguish from one another, especially when in massive form. Wad is a term used to describe a combination of several unidentified manganese oxides, which may include a combination of Pyrolusite, Manganite, Psilomelane, and ...
  • Pyrolusite - Healing Properties, Color, Power & Facts | Gemexi

    www.gemexi.com/gemstones/pyrolusite Pyrolusite is an oxidation product of weather-beaten manganese minerals and is the most common and most important secondary ore of manganese. It also forms stagnant shallow marine and freshwater bog along with swamp deposits. Pyrolusite is formed under conditions of oxidation from primary manganese minerals.
  • Pyrolusite dictionary definition | pyrolusite defined

    www.yourdictionary.com/pyrolusite pyrolusite definition: a very soft, black, tetragonal mineral, MnO, an ore of manganese used in making glass, paint, etc.; manganese dioxideOrigin of pyrolusiteGerman pyrolusit from Classical Greek pyr, fire + lousis, a washing ( from louein, to wash ...
  • Pyrolusite - Crystal Meanings - Spirit Of ISIS Crystals

    www.spiritofisis.org/knowledge/crystal_files/pyrolusite.htm Pyrolusite is a manganese oxide mineral of the Rutile group. Pyrolusite forms under oxidizing conditions and high pH. Mainly a mineral of shallow marine, and bog deposits, it is also found in the oxidized zones of manganiferous ore deposits and as deposits formed by circulating meteoric water.
  • Pyrolusite Mineral Data

    webmineral.com/data/Pyrolusite.shtml General Pyrolusite Information : Chemical Formula: MnO2 : Composition: Molecular Weight = 86.94 gm Manganese 63.19 % Mn 100.00 % MnO 2: Oxygen 36.81 % O: 100.00 % 100.00 % = TOTAL OXIDE
  • Pyrolusite | Geology Page

    www.geologypage.com/2014/07/pyrolusite.html Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO 2) and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black streak, and readily soils the fingers.
  • YupRocks.com - Pictures of the Mineral Pyrolusite

    www.yuprocks.com/plist/pyrolusite.shtml Pyrolusite is the most widespread mineral of manganese and its chief ore. Manganese is a tactically important metal as it forms a vital ingredient of not only steel, but other alloys as well. "Wad" is a mining term used to point out ores that combine with numerous manganese oxides like Pyrolusite, Psilomelane, and others which one will find ...