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单词 sillimanite
释义

Definition of sillimanite in English:

sillimanite

noun ˈsɪlɪmənʌɪtˈsiləməˌnīt
mass noun
  • An aluminosilicate mineral typically occurring as fibrous masses, commonly in schist or gneiss.

    硅线石

    Example sentencesExamples
    • The country rock was regionally metamorphosed to above the sillimanite isograde.
    • Growth of titanite took place during the metamorphic climax in rocks from the kyanite and sillimanite zones.
    • The aluminium silicate minerals andalusite, kyanite, and sillimanite are good examples of this phenomenon of polymorphism.
    • Kyanite and sillimanite may also be present but only as minor components.
    • Muscovite and aluminosilicates are almost entirely absent although, where present, the aluminosilicate is sillimanite.

Origin

Mid 19th century: from the name of Benjamin Silliman (1779–1864), American chemist + -ite1.

Definition of sillimanite in US English:

sillimanite

nounˈsiləməˌnīt
  • An aluminosilicate mineral typically occurring as fibrous masses, commonly in schist or gneiss.

    硅线石

    Example sentencesExamples
    • Kyanite and sillimanite may also be present but only as minor components.
    • Muscovite and aluminosilicates are almost entirely absent although, where present, the aluminosilicate is sillimanite.
    • The country rock was regionally metamorphosed to above the sillimanite isograde.
    • Growth of titanite took place during the metamorphic climax in rocks from the kyanite and sillimanite zones.
    • The aluminium silicate minerals andalusite, kyanite, and sillimanite are good examples of this phenomenon of polymorphism.

Origin

Mid 19th century: from the name of Benjamin Silliman (1779–1864), American chemist + -ite.

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更新时间:2024/12/27 17:12:36