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词汇 witherite
释义

Definition of witherite in English:

witherite

noun ˈwɪðərʌɪtˈwiT͟Həˌrīt
mass noun
  • A rare white mineral consisting of barium carbonate, occurring especially in veins of galena.

    碳钡矿,毒重石

    Example sentencesExamples
    • The mining of nonmetallic ores - fluorspar, witherite, and barite (known locally as baryte) - in the Northern Pennines began about the time lead and iron mining were in serious decline.
    • Other carbonates, i.e., ankerite, siderite, witherite, strontianite, may form if the respective metal cations are available.
    • The most common ores of barium are barite and witherite.
    • Electron micrographs revealed that the sheets and filaments were composed of densely packed colloidal rods of twinned witherite crystals interspersed and coated with silica.
    • The mine was reopened in 1896 and worked by a succession of owners for witherite and barite until 1919.

Origin

Late 18th century: from the name of William Withering (1741–99), the English physician and scientist who first described it, + -ite1.

Definition of witherite in US English:

witherite

nounˈwiT͟Həˌrīt
  • A rare white mineral consisting of barium carbonate, occurring especially in veins with galena.

    碳钡矿,毒重石

    Example sentencesExamples
    • The mine was reopened in 1896 and worked by a succession of owners for witherite and barite until 1919.
    • Other carbonates, i.e., ankerite, siderite, witherite, strontianite, may form if the respective metal cations are available.
    • The mining of nonmetallic ores - fluorspar, witherite, and barite (known locally as baryte) - in the Northern Pennines began about the time lead and iron mining were in serious decline.
    • The most common ores of barium are barite and witherite.
    • Electron micrographs revealed that the sheets and filaments were composed of densely packed colloidal rods of twinned witherite crystals interspersed and coated with silica.

Origin

Late 18th century: from the name of William Withering (1741–99), the English physician and scientist who first described it, + -ite.

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