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Spain | |
| Dr. Joan Viñals |
| Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (2000) Handbook of Mineralogy Vol. 4 - Arsenates, phosphates, vanadates. Mineral Data Publishing, Tucson, Arizona. |
| www.foro-minerales.com (n.d.) http://www.foro-minerales.com/forum/viewtopic.php?t=9415&postdays=0&postorder=asc&highlight=san+guillermo&start=20 |
| Joan Rosell - rosellminerals.com |
| Abella i Creus, Joan (2018) Plumboagardite, green anglesite and other minerals from the Alforja mine, Alforja, Tarragona, Catalunya. Mineral Up, 2018/2. |
| Tanago, J. G., Lozano, P. L., Larios, A. , La Iglesia, A. (2012) Stokesite crystals from La Cabrera, Madrid, Spain. Mineralogical Record 43:499-508 |
| Tanago, J. G., Lozano, P. L., Larios, A. , La Iglesia, A. (2012) Stokesite crystals from La Cabrera, Madrid, Spain. Mineralogical Record 43:499-508 Collection of the Geominero Museum of Madrid |
MarĂa Josefa Mine, Rodalquilar, NĂjar, AlmerĂa, Andalusia, Spain