Características de las turmalinas asociadas a rocas pegmatíticas del área de la Fregeneda, Salamanca (España)

• Autores: Encarnación Roda Robles, Alfonso Pesquera Pérez, Francisco Velasco Roldán
• Localización: Boletín de la Sociedad Española de Mineralogía, ISSN 0210-6558, Vol. 15, Nº. 1, 1992, págs. 211-215
• Idioma: español
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• Resumen

  • In the NW part of the province of Salamanca (Spain) many pegmatites occur. Some of them correspond to Li-bearing pegmatites, but other pegmatitic types are also important. In this paper tourmalines from some of this pegmatitic bodies and their tourmalinized host-rock are examined in terms of their chemistry and conditions of formation. According to their chemistry, they belong to the schorl-dravite series. Substitutions towards alkali-free or proton deficient members are observed. The chemical variations between the studied tourmalines could indicate a different origin for their associate rocks.