Chalcedony from Alpine County, California, USA
USA | |
| Pabst, Adolf (1940) Cryptocrystalline pyrite from Alpine County, California. American Mineralogist, 25 (6) 425-431 |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Van Nostrand Reinholt Press: 380. |
Alpine County, California, USA