Edit NC Mine Entry: 10082963

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Commodity Type:	Metallic Non-Metallic
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Mine Type:	Adit Prospect Surface Underground Unknown Plant Occurrence
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Discussion:	The Clement Mine, also called the Clement-Dyspeck Prospects, was operated by the Rosiclare Lead and Fluorspar Company. The prospects were located northeast of Illinois Route 34 about 2 miles north of Rosiclare (Bastin 1931). A.H. Worthen described a prospect called the McAllen Diggings, present around 1860, in the general vicinity of the Clement Mine (Weller et al. 1952). These pits constitute the northern prospects along the Rosiclare-Hillside Fault Zone (Bastin 1931). Several small pits were developed and at least one shaft was sunk to 40 feet deep (Bastin 1931). By 1928, this mine had produced 1,600 tons of finished spar from a vein 4 feet wide (Bastin 1931). The vein trended N 45°–50° E and the dip was nearly vertical (Bastin 1931). Gravel spar was also reported as being mined in this area. Bain (1905) indicated that other prospects were located farther to the northeast, but little documentation of these prospects could be obtained. The locations of these prospects are also depicted on a geologic map produced by Weller et al. (1952). Weller et al. mapped two shafts labeled Stewart, which were located between the Dyspeck property and the Eureka No. 1 Mine. Very little information is available concerning this prospect, and the Stewart Mine present in the Rosiclare Subdistrict should not be confused with the Stewart Subdistrict several miles to the west.

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Contact Available: Yes No

Discussion:	NO GALENA OR SPHALERITE WERE REPORTED. THE EXPOSED VEIN STRIKES N 45-50 E AND IS NEARLY VERTICAL. A LINEAR SERIES OF SHALLOW WORKINGS. THE PROSPECT IS ON THE ROSICLARE-HILLSIDE VEIN SYSTEM. THERE ARE SEVERAL SMALL OPEN PITS AND A SHALLOW SHAFT. THE SHAFT EXPOSES 4 FT OF VEIN MATERIAL CONSISTIN OF NARROW VEINLETS OF FLUORITE IN IRON-STAINED CLAYEY MATERIAL. BOTH VEIN AND GRAVEL SPAR FLUORITE WERE PRESENT. Production: 1904 to 1942 {\| class="wikitable" ! Mineral occurrence model information \|- \| Model code \|\| 174 \|- \| USGS model code \|\| 26b \|- \| Deposit model name \|\| Fluorspar deposits (fluorite veins) \|} {\| class="wikitable" ! Geologic structures \|- \| Type of structure \|\| Local \|- \| Structure description \|\| Probably Eureka Vein \|} {\| class="wikitable" ! Controls for ore emplacement \|- \| Faulting, Brecciation \|} {\| class="wikitable" ! Workings at the site \|- \| Type of workings \|\| Surface/Underground \|- \| Name of workings \|\| SHAFT \|- \| Overall depth \|\| 12.19M \|}

Bibliography:	Bain, H.F., 1905, The fluorspar deposits of southern Illinois: U.S. Geological Survey, Bulletin 255, 75 p	Source of Mine location:	Yes No	USGS Source:	None Yes No

Bibliography:	Bastin, E.S., 1931, The fluorspar deposits of Hardin and Pope Counties, Illinois: Illinois Geological Survey, Bulletin 58, 116 p.	Source of Mine location:	Yes No	USGS Source:	None Yes No

Bibliography:	Weller, J.M., R.M. Grogan, and F.E. Tippie, 1952, Geology of the fluorspar deposits of Illinois: Illinois State Geological Survey, Bulletin 76, 147 p.	Source of Mine location:	Yes No	USGS Source:	None Yes No

USES MRDS ID Number as link to USGS (if yes leave field below blank)	Yes No
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Reviewed: 1st Entry Checked OK Checked Problem Entry Completed
References Checked: No Yes
Circular 604: None No Yes
Active/Abandoned: Active Abandoned Unknown