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词汇 niocalite
释义

Definition of niocalite in English:

niocalite

noun ˌnʌɪəʊˈkalʌɪt
Mineralogy

  • A basic orthorhombic silicate and fluoride of niobium and calcium, (Ca,Nb)₄Si(O,OH,F)₉, which occurs as yellow crystals.

Origin

1950s. From nio- + cal- + -ite; apparently coined by E. H. Nickel.

Definition of niocalite in US English:

niocalite

nounˌnʌɪəʊˈkalʌɪt
Mineralogy

  • A basic orthorhombic silicate and fluoride of niobium and calcium, (Ca,Nb)₄Si(O,OH,F)₉, which occurs as yellow crystals.

Origin

1950s. From nio- + cal- + -ite; apparently coined by E. H. Nickel.
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