Quartz from selected localities.
USA | |
| USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #MRDS file #10027944. |
Wilson, E.D., et al (1934), AZ Bur. of Mines Bull. 137: 103-104. |
USA | |
| USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #MRDS file #10027944. |
Wilson, E.D., et al (1934), AZ Bur. of Mines Bull. 137: 103-104. |