K Feldspar from selected localities.
USA | |
| [var: Adularia] Bornhorst, T.J., Rose, W.I. (1994) Self-guided geological field trip to the Keweenaw Peninsula, Michigan. Field Trip Guidebook. Institute on Lake Superior Geology Annual Meeting, Houghton, Michigan: 40(2). 185 pages. |
| [var: Adularia] R&M 73:3 p194 |