Philippium
Philippium Phi*lip"pi*um, n. [NL. So named from Philippe Plantamour, of Geneva, Switzerland.] (Chem.) A rare and doubtful metallic element said to have been discovered in the mineral samarskite. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Samarium — Sa*ma ri*um, n. [NL., fr. E. samarskite.] (Chem.) A rare metallic element of doubtful identity. [1913 Webster] Note: Samarium was discovered, by means of spectrum analysis, in certain minerals (samarskite, cerite, etc.), in which it is associated …   The Collaborative International Dictionary of English

  • List of elements by symbol — TOCright This is a list of chemical elements by symbol, including the current signification used to identify the chemical elements as recognized by the International Union of Pure and Applied Chemistry, as well as proposed and historical signs.… …   Wikipedia

  • Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare …   Wikipedia

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