periclase crystals

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• Periclase — General Category Oxide minerals Chemical formula MgO Strunz classification 04.AB.25 Crystal symmetry …   Wikipedia

• Periclase — Per i*clase, Periclasite Per i*cla site, n. [Pref. peri + Gr. ? to break.] (Min.) A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals. [1913 Webster] …   The Collaborative International Dictionary of English

• Periclasite — Periclase Per i*clase, Periclasite Per i*cla site, n. [Pref. peri + Gr. ? to break.] (Min.) A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals. [1913… …   The Collaborative International Dictionary of English

• Oxide minerals — ▪ Table Oxide minerals name colour lustre Mohs hardness specific gravity anatase brown to indigo blue and black; also variable adamantine to metallic adamantine 5½–6 3.8–4.0 boehmite white, when pure 3 3.0–3.1 brookite various browns metallic… …   Universalium

• metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… …   Universalium

• Mineral — For other uses, see Mineral (disambiguation). An assortment of minerals. A mineral is a naturally occurring …   Wikipedia

• Wüstite — Infobox mineral name = Wüstite category = boxwidth = boxbgcolor = imagesize = caption = formula = FeO molweight = color = Greyish white to yellow or brown; colourless in thin section habit = Pyramidic, prismatic system = Cubic twinning = cleavage …   Wikipedia

• marble — marbler, n. /mahr beuhl/, n., adj., v., marbled, marbling. n. 1. metamorphosed limestone, consisting chiefly of recrystallized calcite or dolomite, capable of taking a high polish, occurring in a wide range of colors and variegations and used in… …   Universalium

• Marble — /mahr beuhl/, n. Alice, 1913 90, U.S. tennis player. * * * Granular limestone or dolomite that has recrystallized under the influence of heat, pressure, and aqueous solutions. The main mineral in marble is calcite. Commercially, marble includes… …   Universalium

• Classification of minerals — This list gives an overview of the classification of minerals (non silicates) and includes mostly IMA recognized minerals and its groupings. This list complements the alphabetical list on List of minerals (complete) and List of minerals. Rocks,… …   Wikipedia

• Cobalt(II) oxide — IUPAC name Cobalt(II) oxide …   Wikipedia