"The Chicote district, situated in the eastern part of the central Bolivian Andes 65 km. N N E of Oruro, is one of the larger tungsten producers of the country. The deposit is of the cryptobatholitic type. There are narrow, mineralized fissures in Devonian shales above an unexposed intrusive...The only tungsten mineral is wolframite associated with large quantities of pyrrhotite. The vein zone has a vertical range of 1300 meters without any pronounced change in the mineral content. The district is composed of a fringe zone of tin veins surrounding a central core of wolframite veins."

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