pelopium definition

  • noun:
    • A supposed chemical factor, later on found becoming a combination of niobium and tantalum.
    • A supposed brand new steel present in columbite, afterward proved to be identical with columbium, or niobium.
    • The name given by H. Rose to a supposed new substance element that he believed that he previously detected inside mineral columbite from Bavaria. He afterward respected its identity with niobium.
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