|
USA | |
- Caballo Mountains Mining District
| Jerry Cone Collection |
- Hillsboro Mining District
| Luetcke, Rolf (n.d.) Personal communication. |
| Jerry Cone Collection |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. USGS Bull 945C |
| [Opal-A var. Opal-AN] Gibbs, R. (2013) Microminerals near San Juan Peak in the San Mateo Mountains, Socorro County, New Mexico. 34th Annual New Mexico Mineral Symposium, November 9-10, Socorro, New Mexico, Program with Abstracts: 34(14): 27. |
| [Opal-A var. Opal-AN] 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. |
| [Opal-A var. Opal-AN] 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. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| [Opal-A var. Opal-AN] Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| NMBMMR OFR 19 |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| [Opal-A var. Opal-AN] Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
Beryllium Virgin claim, Paramount Canyon, Sierra County, New Mexico, USA