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Ch. 3: Mine Distribution in North Carolina

Ch. 3: Mine Distribution in North Carolina Page of 172 Ch. 3: Mine Distribution in North Carolina Text size:minus plus Restore normal size   Mail page  Print this page
54
GOLD MINING IN NORTH CAROLINA.
breccia. It is very sparingly impregnated with sulphurets (pyrite and some chalcopyrite). Several small quartz-veins (less than 1 inch in thickness) intersect the mass. The mine consists of a small quarry opening in the quartz-porphyry. A 10-stamp mill, equipped with a cyanide plant, stands on the property and was last in operation in July, 1893. The ore was reported to be of too low grade to be profitably treated.
MINES IN STANLY COUNTY.
The mines are located in the northeastern portion of the county, more or less on the line of the Southern Railroad branch running from Salisbury to Norwood. Among the more important properties are the Haithcock, Hearne, Crawford, Lowder, Parker, Crowell and Barringer.
The Haithcock and Heaene mines are about two miles northwest of Albemarle. The country-rock is clay-slate, striking N.E., and associated with eruptives. The quartz-veins are stated to be from 2 to 6 feet in thickness.
The Crawford mine, situated 4 miles northeast from Albemarle, is a newly discovered placer, and is described in detail on p. 91.
The Lowder mine is situated 4 miles west of Albemarle. It was opened in 1835, but has not been operated since the war. Previous to that time it was worked along the outcrop and to a depth of 65 feet. The quartz-vein is stated to be 3| feet in thickness, lying approximately with the slates in strike and dip. During the summer of 1895 the mine was unwatered, and some prospecting work was carried on.
The Parker mine (the !N"ew London Estates Company, L'td.) is situated at 'New London, 9 miles northwest of Albemarle. The property comprises about 1200 acres. It is now in litigation. The country slates resemble those of the Monroe type (see p. 16); they are intruded by successive flows of greenstone porphyry and more basic eruptives, in part brecciated. The mine shafts have disclosed at least two volcanic sheets, from 2 to 3 feet thick each, lying horizontally and separated by sedimentary slates. In places the greenstone is squeezed into nearly vertical schistose masses. The country is intersected by numberless quartz-stringers and several larger quartz-veins, which are auriferous. The principal work at the Parker consisted of hydraulicking (see Plate IV) in several old gravel channels, which are stated to have yielded over $200,000. The gold was coarse, usually in nuggets from a few pennyweights up to 3 pounds. The fineness of the gold is 950 to 970.
The value of the gravel is stated to vary from 44 cents to $2.40 per cubic yard.
In one of the hydraulic cuts the bed-rock underlying the grit was decomposed greenstone. Test-pits have shown that this bed-rock is but
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