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64
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GOLD MINING IN
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NORTH CAROLINA.
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Henderson (7 miles northeast of Charlotte), Ferris, Tredinick (7 miles southeast of Charlotte), Eay (9 miles southeast of Charlotte), Simpson (10 miles southeast of Charlotte), and Surface Hill (10 miles east of Charlotte).
The Rudisil mine is 1 mile south of Charlotte. In the upper part of the mine the country is a silicified, chloritic and argillaceous slate. At a depth of 200 feet this gives place to a crystalline eruptive rock. The ore-body consists of two parallel veins close together and separated by slate; they are said to vary in thickness from 2 to 6 feet. The strike is X. 30° E. and the dip 45° XAV. The mine has been worked to a maximum depth of 300 feet in three principal shoots, some of which furnished very rich though highly sulphuretted ores. The largest of these shoots had a maximum length of 100 feet and a maximum thickness of 15 feet; it pitched towards the south, and was followed down to below the 300-foot, but never found in the 350-foot level. Xo attempt at concentration and treatment of sulphurets was made.
The Smith and Palmer and the Howell mines are supposed to be on the southwestern extension of the Eudisil.
The St. Catherine mine is on the northeastern extension of the Rudisil, and the general features are the same. The deepest workings are at the 370-foot level. It is reported that no large chimneys of solid high-grade ore were found below the 250-foot level; but between the 200 and 370 a large shoot, 4 to 60 feet wide, of low-grade ore has been worked. The ores were treated by battery amalgamation, and the sulphurets were concentrated; these were probably shipped north or elsewhere for smelting.
The Capps mine is 5^ miles northwest of Charlotte. There are two convergent veins, the Capps striking X. 30° "W. and dipping 40° V., and the Jane striking X. 40°-60° E., and dipping steeply eastward (see Fig. 5). The actual intersection of the veins has not been found. The Capps was worked to a maximum depth of 130 feet in the Bissell shaft. The filling of the vein is quartz. Its thickness, as explored in the mine workings, was not less than 20 feet; definite walls were only found at a few points. The pay-ore was not uniformly distributed in the quartz, but generally occurred in layers. Four ore-shoots have been explored. The brown ores extend to a depth of 130 feet. The sulphurets are pyrite, with some chalcopyrite. The past production of the Capps has been estimated at over $1,250,000.
In the summer of 1895, Mr. "Wilkes, the owner of the Capps. made at his test plant in Charlotte, a trial run of 50 tons of Capps ore (sulphurets) from the old dumps, and the result of this milling and oh 1 ovulation test was a yield of $27 per ton.
Between January and April, 1895, four diamond drill-holes (1-inch
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