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goethite

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goethite
@@@LINK=göthite Oxford English Dictionary
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Goethite
The formation of goethite is marked by the oxidation state change of Fe2+ (ferrous) to Fe3+ (ferric), which allows for goethite to exist at surface conditions Common goethite pseudomorphs include pyrite, siderite, and marcasite, though any iron(II)-bearing mineral could become a goethite pseudomorph if proper wikipedia.org
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Legrandite
Associated minerals include: adamite, paradamite, köttigite, scorodite, smithsonite, leiteite, renierite, pharmacosiderite, aurichalcite, siderite, goethite wikipedia.org
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göthite
goethite, göthite Min. (ˈgœtaɪt) [Named after the poet Goethe (Göthe) by Lenz in 1806: see -ite.] A hydrous oxide of iron, of reddish or dark-brown colour, occurring in orthorhombic crystals, also massive.1823 Brooke Crystallogr. 468 Gothite. 1837 Allan Phillip's Min. 221 Goethite. 1869 Phillips Ves... Oxford English Dictionary
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Iddingsite
Goethite-like structures are common because goethite is in the same space group as olivine. These structures are aligned parallel to the original olivine with a-axis (goethite) parallel to a-axis (olivine), b-axis (goethite) parallel to b-axis wikipedia.org
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pyrrhosiderite
pyrrhosiderite Min. (-saɪˈdɪəraɪt, -ˈsɪdəraɪt) Also (erron.) pyrosiderite. [ad. Ger. pyrrhosiderit (Ullmann a 1813), f. Gr. πυρρός reddish + σίδηρος iron + -ite1.] A synonym of goethite.1830 J. H. Brooke in Encycl. Metrop. (1845) VI. 495/1 Goethite; Pyrosiderite; Iron Froth. 1836 T. Thomson Min., Ge... Oxford English Dictionary
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Feroxyhyte
Forms under high pressure conditions and reverts to goethite on exposure to surface conditions. wikipedia.org
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Limpet
After one to two days, these ions are converted to goethite crystals. There exists amorphous silica between the goethite crystals; surrounding the goethite is a matrix of chitin. wikipedia.org
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Siderogel
Siderogel is an amorphous mineral (a mineraloid) consisting of iron(III) oxide-hydroxide , the same chemical compound as limonite and goethite; or possibly wikipedia.org
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针铁矿
其在西方的名字（Goethite）源自德国著名作家、哲学家同时也是矿物收集爱好者歌德。 针铁矿呈暗褐色，条痕褐色，半金属光泽。硬度5－5.5。斜方晶系，晶体呈针状或柱状，通常呈肾状、钟乳状集合体。针铁矿主要是由含铁矿物经过氧化和分解而形成的次生矿物，是构成褐铁矿的主要矿物成分。 wikipedia.org
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Polydymite
Continued oxidation of polydymite leads to replacement by goethite and formation of a gossanous boxwork, with nickel tending to remain as impurities within the goethite or hematite, or rarely as carbonate minerals. wikipedia.org
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锰铅矿
成因产状 锰铅矿为沉积岩矿物，产于灰岩侵蚀面上的含铅黑土中，与黑锌锰矿 (Chalcophanite)、针铁矿(Goethite)等共生。 参见 以人名命名的矿物列表 参考文献 地球科学 矿物学 wikipedia.org
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Mongolata, South Australia
The quartz veins are rich in goethite, often pseudomorph after siderite. Native gold is mostly associated with goethite. wikipedia.org
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Lahnsteinite
Occurrence Lahnsteinite was first found in a cavernous kidney-like goethite. Typically Lahnsteinite is found near goethite, pyromorphite, quartz and native copper. wikipedia.org
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Red beds
These ferric hydroxides commonly include goethite (FeO-OH) and so-called "amorphous ferric hydroxide" or limonite. to the reaction: 2FeOOH (goethite)→ Fe2O3 (hematite) +H2O The Gibbs free energy (G) for the reaction goethite → hematite (at 250 °C) is −2.76 kJ/mol wikipedia.org
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