JAHNS R.H. MICA DEPOSITS OF THE PETACA DISTRICT, RIO ARRIBACOUNTY NEW MEXICO NMBM BULL. 25 1946 P 270- 271REDMON D.E. RECONNAISSANCE, PEGMATITE USBM I.C. 80131961 P 51, 53BINGLER E.C. GEOLOGY, RIO ARRIBA NMBM BULL. 91 1968P 127JAHNS R.H. MILLING IMPROVES NORTHERN NEW MEXICO SCRAP MICAOUTLOOK E & MJ VOL. 149 NO. 5 MAY 1948 P 97, 98NMBM MINES INDEX