Urueña River, Burruyacú Department, Tucumán, Argentina
is located in the extreme northeast of Burruyacú Department, just in the provincial Tucuman-salta limit.
Manifestations of manganese, which are presented as dioxide (Pyrolusite and Psilomelane, Criptomelano), are part of the Canyon of the Río Urueña, just in the provincial Tucuman-salta limit. Elevation: 434 m. above sea level.
| Cryptomelane|| 'Psilomelane'|| Pyrolusite|
3 entries listed. 2 valid minerals.
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Hugo A. Peña (1970). Minerales y Rocas de Aplicación de la Provincia de Tucumán. Dirección Provincial de Minas. Tucumán.
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