Society of Economic Geologists

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The Society of Economic Geologists (SEG) serves 6,500+ members worldwide who are committed to advancing the science and the discovery of mineral resources through research, publications, courses, and field trips.
Chemical variation and significance of tourmaline from Southwest England
London,David et al.
Economic Geology(1995), 90 (3):495
http://dx.doi.org/10.2113/gsecongeo.90.3.495

Society of Economic Geologists
Society of Economic Geologists
GeoScienceWorld
GeoScienceWorld