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单词 leucite
释义

Definition of leucite in English:

leucite

noun ˈluːsʌɪtˈluˌsaɪt
mass noun
  • A potassium aluminosilicate mineral, crystallizing in the tetrahedral system and typically found as grey or white glassy trapezohedra in volcanic rocks.

    Example sentencesExamples
    • Early reports of leucite from this locality were shown to be an erroneous identification of analcime.
    • Additionally, lamproites may contain leucite, richterite, sanidine, and occasionally nepheline, whereas kimberlites do not.
    • Geologic observations of this region were recorded as early as 1869 by the Hayden Survey, and by 1874 Endlich had reported leucite (later correctly identified as analcime) from Table Mountain.
    • The three commonest feldspathoids are leucite, nepheline, and sodalite.
    • Familiar examples include nepheline, leucite, and members of the sodalite and cancrinite groups.

Origin

Late 18th century: from Greek leukos 'white' + -ite1.

 
 

Definition of leucite in US English:

leucite

nounˈluˌsaɪtˈlo͞oˌsīt
  • A gray or white potassium aluminosilicate, typically found in alkali volcanic rocks.

    Example sentencesExamples
    • Familiar examples include nepheline, leucite, and members of the sodalite and cancrinite groups.
    • Geologic observations of this region were recorded as early as 1869 by the Hayden Survey, and by 1874 Endlich had reported leucite (later correctly identified as analcime) from Table Mountain.
    • Additionally, lamproites may contain leucite, richterite, sanidine, and occasionally nepheline, whereas kimberlites do not.
    • Early reports of leucite from this locality were shown to be an erroneous identification of analcime.
    • The three commonest feldspathoids are leucite, nepheline, and sodalite.

Origin

Late 18th century: from Greek leukos ‘white’ + -ite.

 
 
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更新时间:2024/12/24 0:13:38