Chert from
USA | |
| AZ Bur. Mines Bull. 135 (1933), AZ Gold Placers and Placering: 81-82. |
| MRDS database Dep. ID #10060233. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |