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单词 riebeckite
释义

Definition of riebeckite in English:

riebeckite

noun ˈriːbɛkʌɪtˈrēbekīt
mass noun
  • A dark blue or black mineral of the amphibole group, occurring chiefly in alkaline igneous rocks or as blue asbestos (crocidolite).

    Example sentencesExamples
    • Later in the week we enticed the government guys to take us to a locality called Kent, quite a drive from Karaganda, where in a beautiful setting we collected fluorite, riebeckite, and zircon from granite.
    • Willman reported astrophyllite, biotite, molybdenite, and riebeckite associated with smoky quartz and microcline (variety amazonite) on Mount Kineo at North Cheyenne Canyon.
    • On the other hand, there is evidence that long-term exposure to asbestiform riebeckite can be dangerous.
    • The mineral is found as small pink to gray masses of microcrystals in quartz-feldspar pegmatites and veins in association with astrophyllite, riebeckite, and zircon.
    • Glaucophane and riebeckite are found in low-grade schists of basic igneous parentage; crocidolite occurs in medium-grade metamorphosed ironstones.

Origin

Late 19th century: from the name of Emil Riebeck (died 1885), German explorer, + -ite1.

 
 

Definition of riebeckite in US English:

riebeckite

nounˈrēbekīt
  • A dark blue or black mineral of the amphibole group, occurring chiefly in alkaline igneous rocks or as blue asbestos (crocidolite).

    Example sentencesExamples
    • Later in the week we enticed the government guys to take us to a locality called Kent, quite a drive from Karaganda, where in a beautiful setting we collected fluorite, riebeckite, and zircon from granite.
    • The mineral is found as small pink to gray masses of microcrystals in quartz-feldspar pegmatites and veins in association with astrophyllite, riebeckite, and zircon.
    • Glaucophane and riebeckite are found in low-grade schists of basic igneous parentage; crocidolite occurs in medium-grade metamorphosed ironstones.
    • Willman reported astrophyllite, biotite, molybdenite, and riebeckite associated with smoky quartz and microcline (variety amazonite) on Mount Kineo at North Cheyenne Canyon.
    • On the other hand, there is evidence that long-term exposure to asbestiform riebeckite can be dangerous.

Origin

Late 19th century: from the name of Emil Riebeck (died 1885), German explorer, + -ite.

 
 
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更新时间:2024/12/23 17:18:01