Mineralogía de las pegmatitas y cavidades miarolíticas del batolito granítico de Porriño, Pontevedra, Galicia

The granite quarries of the Porriño batholit, Pontevedra, Spain, are exploited to extract a pink, coarse-grained granite, known commercially as "Rosa Porriño", used in construction and as an ornamental stone. In this granite appear myarolytic cavities, with smoky quartz, albite, microcline and chamosite as main minerals, sometimes accompanied by sulphides, especially molybdenite, titanite and rare earth minerals.