JAHNS RICHARD H. MICA DEPOSITS OF THE PETACA DISTRICT,RIO ARRIBA COUNTY, NEW MEXICO NMBM BULL. 25 1946P 146, PLATE 1BINGLER E.C. GEOLOGY, RIO ARRIBA NMBM BULL. 91 1968P 121NMBM MINES INDEXREDMON D.E. RECONNAISSANCE OF SELECTED PEGMATITE DISTRICTSIN NORTH-CENTRAL NEW MEXICO USBM I.C. 8013 1961 P 19,23- 24