Galena of Missouri and Wisconsin; the former mining communities of Galena, Kansas and Galena, Illinois take their names from deposits of this mineral. The largest documented crystal of galena is composite cubo-octahedra from the Great Laxey Mine, Isle of Man, measuring . Galena belongs to the octahedral sulfide group of minerals that have metal ions in octahedral positions, such as the iron sulfide pyrrhotite and the nickel arsenide niccolite. The galena group is named after its most common member, with other isometric members that include manganese bearing alabandite and niningerite. Divalent lead (Pb) cations and sulfur (S) anions form a close-packed
Mineral industry of Paraguay shown interest in the country, which could support continued economic growth and foreign direct investment (FDI) in new technologies well into the next decade. In 2006, Paraguay produced mostly cement, clays, iron ore, natural gas, pig iron, and steel. Paraguay's mineral reserves and resources were unidentified. The mineral industry of Paraguay mostly consists of Paraguayan state-owned firms. The structure of the country's mineral industry would, however, change, particularly in the natural gas sector, to a privately and/or joint-venture owned, government-regulated regime from one that was only government owned (Banco Central del Paraguay, 2007). FDI inflows to Mercosur increased to $25.1