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单词
plumboniobite
释义
plum·bo·niobite
\“+\
noun
Etymology:
German
plumboniobit,
from
plumb- + niobit
niobite
:
a niobite of complex composition resembling samarskite but containing lead and found in dark brown to black masses in pegmatite veins or massive slate
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更新时间:2025/11/3 8:52:03