Smoky Quartz from Wisconsin, USA
USA | |
| Cordua, William S. (1998) Wisconsin Mineral Locality Index. Rocks & Minerals, 73 (6) 378-399 doi:10.1080/00357529809603078 |
| Thomas Buchholz, 1999 "Minerals of a Wausau Pegmatite, Marathon County, Wisconsin", Rocks and Minerals, vol .74 #4, p. 254 - 258. |
| collected by Carl Mauritz |
Wausau Intrusive Complex, Marathon County, Wisconsin, USA