Pyrolusite from selected localities.
USA | |
| Moore, R.T. (1968), Mineral deposits of the Fort Apache Indian Reservation, AZ, AZ Bur. of Mines Bull. 177: 36-39; Farnham, L.L., et al (1961), Manganese deposits of eastern AZ, US Bur. of Mines Inf. Circ. 7990. |
| MRDS database Dep. ID #10027388, MRDS ID #M003010. |