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单词 limonite
释义

Definition of limonite in English:

limonite

noun ˈlʌɪmənʌɪtˈlaɪməˌnaɪt
mass noun
  • An amorphous brownish secondary mineral consisting of a mixture of hydrous ferric oxides, important as an iron ore.

    Example sentencesExamples
    • Picture richly wooded hill country possessing beds of limonite with New England's richest iron ore and plentiful streams with abundant mill seats.
    • This crystal was glassy and was found associated with smoky quartz, microcline-perthite, biotite, zircon, bastnasite, and limonite after siderite.
    • The associated minerals are not remarkable on the specimens; only limonite and some secondary lead minerals form in the matrix.
    • They noted that good pseudomorphs of limonite after pyrite, both as cubes and as pyritohedra, are common, especially in bodies of massive pyrite.
    • Oxidation of the deposit is quite extensive, and limonite is common; therefore, although I did not observe goethite, it is probably present.
    • In this specimen, limonite (an iron oxide) contributes to the bright central arc, while fine spherules of hematite (another iron oxide) suffuse the quartz with a purplish hue.
    • In the flats surrounding the veins commercial iron deposits were found as limonite that was derived from the oxidation of iron carbonates (ankerite and/or siderite).
    • The common presence of limonite suggests that there was a significant quantity of pyrite in the area prior to oxidation.
    • Some of the turquoise from their mine contains limonite intergrown with thin layers of native gold.
    • The phenakite is also associated with albite, limonite, smoky quartz, and topaz and is often overlooked because it resembles quartz.
    • Some of the cavities contain bits of iron oxides, and relatively sharp octahedra have been found on weathered pseudomorphs of limonite after pyrite.
    • The first, and highest-temperature, period is characterized by the crystallization of phlogopite and limonite on cavity walls.
    • The irregular topography of this bedding surface is covered by a thin veneer of micrite with limonite disseminated throughout.
    • The lower Cubagua Formation consists of gray shale with glauconite, abundant pyrite nodules, gray limonite, and some sandy intercalation with fine clastics probably carried out by turbidity currents.
    • The ore, a mixture of ‘psilomelane’ and pyrolusite with much manganiferous limonite, contains masses of cerussite.
    • In the Weasel pocket, the earliest mineral to form appears to have been one of the iron-bearing carbonates that has since been oxidized to limonite.
    • The walls of molds of this material are commonly lined by a thin coating of limonite.
    • Although some plates are dull and stained by limonite, the clean, bright specimens are very aesthetic.
    • Twenty specimens permineralized by limonite and pyrite were studied.
    • Frank Knaus found crude 3.1-cm pyrite cubes covered with a crust of limonite.

Derivatives

  • limonitic

  • adjective
    • Lovering, Tweto, and Lovering stated that dark yellow jarosite is an abundant constituent of the limonitic and ocherous materials in the oxidized orebodies, where it is mixed with iron oxides.
      Example sentencesExamples
      • Bed 4 comprised medium grey fossiliferous mudstone with limonitic ooids and phosphatic nodules.
      • The Surface de Lion is an irregular and hardened erosional feature that is perforated by bivalves, encrusted with oysters, and covered in certain places by patchy pyritic to limonitic deposits.
      • It is translucent green and forms a botryoidal layer less than 1 cm thick on a hard limonitic matrix.
      • Whether or not this section also shows anomalous Ir concentration is not known but there are no limonitic layers here.

Origin

Early 19th century: from German Limonit, probably from Greek leimōn 'meadow' (suggested by the earlier German name Wiesenerz, literally 'meadow ore').

 
 

Definition of limonite in US English:

limonite

nounˈlaɪməˌnaɪtˈlīməˌnīt
  • An amorphous brownish secondary mineral consisting of a mixture of hydrous ferric oxides, important as an iron ore.

    Example sentencesExamples
    • The associated minerals are not remarkable on the specimens; only limonite and some secondary lead minerals form in the matrix.
    • The walls of molds of this material are commonly lined by a thin coating of limonite.
    • The phenakite is also associated with albite, limonite, smoky quartz, and topaz and is often overlooked because it resembles quartz.
    • In the Weasel pocket, the earliest mineral to form appears to have been one of the iron-bearing carbonates that has since been oxidized to limonite.
    • In the flats surrounding the veins commercial iron deposits were found as limonite that was derived from the oxidation of iron carbonates (ankerite and/or siderite).
    • The first, and highest-temperature, period is characterized by the crystallization of phlogopite and limonite on cavity walls.
    • The irregular topography of this bedding surface is covered by a thin veneer of micrite with limonite disseminated throughout.
    • In this specimen, limonite (an iron oxide) contributes to the bright central arc, while fine spherules of hematite (another iron oxide) suffuse the quartz with a purplish hue.
    • Oxidation of the deposit is quite extensive, and limonite is common; therefore, although I did not observe goethite, it is probably present.
    • They noted that good pseudomorphs of limonite after pyrite, both as cubes and as pyritohedra, are common, especially in bodies of massive pyrite.
    • Picture richly wooded hill country possessing beds of limonite with New England's richest iron ore and plentiful streams with abundant mill seats.
    • The lower Cubagua Formation consists of gray shale with glauconite, abundant pyrite nodules, gray limonite, and some sandy intercalation with fine clastics probably carried out by turbidity currents.
    • The common presence of limonite suggests that there was a significant quantity of pyrite in the area prior to oxidation.
    • This crystal was glassy and was found associated with smoky quartz, microcline-perthite, biotite, zircon, bastnasite, and limonite after siderite.
    • Twenty specimens permineralized by limonite and pyrite were studied.
    • Some of the cavities contain bits of iron oxides, and relatively sharp octahedra have been found on weathered pseudomorphs of limonite after pyrite.
    • Frank Knaus found crude 3.1-cm pyrite cubes covered with a crust of limonite.
    • Although some plates are dull and stained by limonite, the clean, bright specimens are very aesthetic.
    • Some of the turquoise from their mine contains limonite intergrown with thin layers of native gold.
    • The ore, a mixture of ‘psilomelane’ and pyrolusite with much manganiferous limonite, contains masses of cerussite.

Origin

Early 19th century: from German Limonit, probably from Greek leimōn ‘meadow’ (suggested by the earlier German name Wiesenerz, literally ‘meadow ore’).

 
 
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更新时间:2025/1/3 15:03:42