This native silver is from Porco in Agua de Castilla, Antonio Quijarro Province, Potosi Department, Bolivia. This area encompasses hundreds of square kilometers that contain intrusions and deposits of over one hundred different mineral species. It is mined primarily for silver, zinc, tin, lead and other associated ore minerals. Occasionally deposits of native silver in crystal and wire form appear on the market. This is an excellent example of a wire horn from Porco. This is a thumbnail sized wire that measures 16 mm across.