Platinum
Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term "platino", meaning "little silver".
Platinum, Alaska
During World War II, the Alaska Territorial Guard served to safeguard it against Japanese attack as it was the only source of the strategic metal platinum in the Western Hemisphere.