Chalcedony from selected localities.
USA | |
| USGS Prof Paper 973F U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
NMBMMR Bull 83 Mineral Deposits of Western Grant County, New Mexico | |
| NMBMMR Bull 83 Mineral Deposits of Western Grant County, New Mexico |
| NMBMMR Bull 83 Mineral Deposits of Western Grant County, New Mexico |