Microcline from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills" | |
| Rocks & Minerals 76:385 |
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills" | |
| Rocks & Minerals 76:385 |