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pyroxene    音标拼音: [pɑɪr'ɑksin] [p'ɑɪrɑks,in]
n. 辉石

辉石

pyroxene
n 1: any of a group of crystalline silicate mineral common in
igneous and metamorphic rocks

Pyroxene \Pyr"ox*ene\, n. [F. pyrox[`e]ne, from Gr. ? fire ? a
stranger; -- so called because it was supposed to the be a
stranger, or of rare occurrence, in igneous rocks,] (Min.)
A common mineral occurring in monoclinic crystals, with a
prismatic angle of nearly 90[deg], and also in massive forms
which are often laminated. It varies in color from white to
dark green and black, and includes many varieties differing
in color and composition, as diopside, malacolite, salite,
coccolite, augite, etc. They are all silicates of lime and
magnesia with sometimes alumina and iron. Pyroxene is an
essential constituent of many rocks, especially basic igneous
rocks, as basalt, gabbro, etc.
[1913 Webster]

Note: The pyroxene group contains pyroxene proper, also the
related orthorhombic species, enstatite, bronzite,
hypersthene, and various monoclinic and triclinic
species, as rhodonite, etc.
[1913 Webster]


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  • Pyroxene - Wikipedia
    The pyroxenes (commonly abbreviated Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks
  • Pyroxene Group Minerals | Properties, Occurrence and Uses - Geology Science
    Pyroxene is a set of essential rock-forming inosilicate minerals discovered in many igneous and metamorphic rocks Formula is XY(Si,Al)2O6
  • Pyroxene | Mineral Composition, Structure Uses | Britannica
    pyroxene, any of a group of important rock-forming silicate minerals of variable composition, among which calcium-, magnesium-, and iron-rich varieties predominate Pyroxenes are the most significant and abundant group of rock-forming ferromagnesian silicates
  • Pyroxene Group: Mineral information, data and localities. - mindat. org
    Pyroxene was named because of its presence in a glassy or vitreous lava Pyroxene was believed to be an impurity in the glass, and therefore a "stranger to fire" and not formed by the action of heat
  • The Pyroxene Mineral Group - Geology. com
    Pyroxene minerals are primary or secondary constituents of many rocks used to make crushed stone, dimension stone, and architectural stone Pyroxene is in the trap rock of the construction industry and in the "black granites" that are popular for making decorative tile and facing stone
  • Pyroxene | Common Minerals
    An important rock-forming mineral of igneous and metamorphic rocks, pyroxene is not a specific mineral, but an informal name used for a number of group of related minerals
  • Pyroxene - New World Encyclopedia
    The pyroxenes are a group of important rock-forming silicate minerals found in many igneous and metamorphic rocks They share a common structure comprised of single chains of silica tetrahedra and they crystalize in the monoclinic and orthorhombic system
  • Pyroxene - Encyclopedia. com
    pyroxene An important group of inosilicates (chain silicates) comprising the orthorhombic pyroxenes (orthopyroxenes) and the monoclinic pyroxenes (clinopyroxenes) with the general formula XYZ 2 O 6, where × = Mg, Fe, Ca, or Na; Y = Mg, Fe, Fe 3+, or Al; and Z = Si (and some Al substitution)
  • Pyroxenes | Earth Sciences Museum | University of Waterloo
    Pyroxenes are the most significant and abundant group of rock-forming ferromagnesium silicates They are found in almost every variety of igneous rock They also form under conditions of regional and contact metamorphism Their conditions of formation are almost exclusively restricted to environments of high temperature, high pressure, or both
  • Pyroxene - Geology is the Way
    Pyroxenes are a group of chain silicates that occur as fundamental Mg, Fe, Ca, and Na-bearing minerals in many igneous and metamorphic rocks





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