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A steel-gray to black mineral, MnO(OH), found in North America and Europe; manganese oxide.


(Minerals) a blackish mineral consisting of basic manganese oxide in monoclinic crystalline form: a source of manganese. Formula: MnO(OH)


(ˈmæŋ gəˌnaɪt)

1. a gray to black mineral, hydrous manganese oxide, MnO(OH); gray manganese ore.
2. any of a series of salts containing tetravalent manganese and derived from either of two acids, H4MnO4 or H2MnO3.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.manganite - a black mineral consisting of basic manganese oxidemanganite - a black mineral consisting of basic manganese oxide; a source of manganese
atomic number 25, manganese, Mn - a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
This leads us to conclude that the grain growth is suppressed by the rare earth ions especially manganite's whose base is rare earth [25].
The probable potential minerals in organic plant tissues according to the XRD database were: arcanite ([K.sub.2]S[O.sub.4]), calcium borate hydrate ([Ca.sub.3] [(B[O.sub.3]).sub.2]*[H.sub.2]O), calcium silicide (Ca[Si.sub.2]), cristobalite (Si[O.sub.2]), celestine (SrS[O.sub.4]), calcium phosphate (CaHP[O.sub.4]), hydrogrossular ([Ca.sub.3][Al.sub.2][(Si[O.sub.4]).sub.3-x][(OH).sub.4x]), manganite (MnO(OH)), potassium nitrate (KN[O.sub.3]), potassium oxalate hydrate ([K.sub.2][C.sub.2][O.sub.4].
Ab-initio analysis of magnetic, structural, electronic and thermodynamic properties of the [Ba.sub.2]TiMn[O.sub.6] manganite. DYNA.
Saravanan (physics, Madura College) investigates the growth, physical, and X-ray characterization of materials having manganite structures.
Zhang, "Magnetic relaxation behavior in Tb-doped perovskite manganite," Journal of Magnetism and Magnetic Materials, vol.
(2005) analyzed different types of magnetocaloric materials such as gadolinium (Gd), Gd-based alloys, manganite (Mn), and Mn-based alloys.
Nickel oxide - ysz powder 2.lanthanum strontium manganite powder
Production of strontium substituted lanthanum manganite perovskite powder by the amorphous citrate process.
Samples 2 and 4 have peaks with low intensity, that are specific for the crystal phases [gamma]-Al[(OH).sub.3], [gamma]-AlOOH, manganite [gamma]-MnOOH and [Mn.sub.3][O.sub.4], respectively.
In the exhibition from all over Khyber Pakhtunkhwa, Chitral, Gilgit Baltistan, Quetta and other areas of the country the Gems and Jewelry business community arranged some stall in which precious stones like Ruby, Tourmaline, Peridot, Sapphire, Emerald, Aquamarine, Topaz, Zircon, Spinel, Kunzite, Tanzanite, Manganite, Pearl, Turquoise, Lapislazuli, Citrine, Opal, Coral, Agate, Amber, Malachite, Almandine Garnet, Moon Stone, Sun Stone, Blood Stone, Amethyst, Aventurine.
In this research, ceramic nanoparticles of lanthanum manganite doped with strontium (La8Sr2MnO3) have been produced through mechanical milling and by using thermal operation.