Quartz from selected localities.
USA | |
| Mineralogical Record (1997) 28:3-49 |
Geology of the Fluorspar Deposits of Illinois; J. Weller, R. Grogan, F. Tippie, 1952 | |
Rocks & Min.:64:18. | |
Econ Geol (1994) 89:288-306; Rocks & Min.: 63:210-226 | |
| Rocks & Min.: 63: 211 & 224.; U.S.G.S. Bulletin 255; Stuart Weller, Charles Butts, Louis W. Currier, Rollin D. Salisbury (1920) The geology of Hardin County, and the adjoining part of Pope County Illinois Geological Survey Bull. 41 |
| Goldstein, A. (2005): Re-examination of some minerals from the Cave-in-Rock area. Mineral News, 21(4), 1-5; 12. ; Mineralogical Record (1997) 28:3-49 |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
Rocks & Min.: 63:224. | |
Min News (1993) 9:3 p3 | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| Mineralogical Record (1997) 28, 3-49. |
Minerva No. 1 Mine, Ozark-Mahoning group, Cave-In-Rock Mining Sub-District, Hardin County, Illinois, USA