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GEMS AND PRECIOUS STONES.
699
Other turquoise prospects are reported to have been opened by Smithson & Phillips about a mile east of the Wood mine on the east side of the divide extending south from Crescent Peak.
A turquoise prospect was opened several years ago, 1 mile south of Crescent near the head of a small valley. This deposit is now owned by G. W. Morgan, of Crescent, Nev. The workings consist of a tunnel 75 feet long driven southward into a hillside and con­necting with a shaft 35 feet deep on an incline of about 70° E. with two smaller pits. The country rock is a dark granular igneous rock of granitic or quartz monzonitic nature. It is cut by a finer grained light colored rhyolite. Both rocks have partly altered, and the rhyolite has been hardened by secondary quartz. The turquoise occurs in seams and veinlets, chiefly in the rhyolite. In places the turquoise shows a tendency to nodular development in the veinlets. Fragments of greenish, pale-blue, and some good nearly pure-blue turquoise were observed around the workings. Mr. Morgan states that about 200 pounds of turquoise and matrix were obtained, for some of which offers of $20 a pound were received.
NEW MEXICO.
The turquoise deposits of the Jarilla mining district have been mentioned in several of these reports by George F. Kunz. They have been referred to as near Las Cruces, for many years the nearest railroad point. W. E. Hidden1 furnished one of the best early descriptions of the locality. He mentions at least 10 prehistoric workings and states that mining was in progress at the time of his visit in 1893.
The following information was furnished by Mr. Allen Culver, of Brice: The mine known as the Tiffany mine was worked by David King about 20 years ago and yielded a quantity of good turquoise. The De Meules mine was worked two years preceding 1898, when De Meules, the owner, was murdered by Jose" Flores as the result of a quarrel over a payment for Flores's services as a witness at Las Cruces. The property is reported to have yielded $60,000 worth of turquoise in the last year of operation by De Meules. Later it was leased by Cv Ryan and Tom Kelly, yielding a large quantity of good turquoise. The claim of Luna, Moreno & Ascarate was worked about 13 years ago and proved fairly productive. For the last several years only assesment work has been done. The Tiffany mine has been pat-ented under the name of the Alabama claims, the only patented turquoise claims in the district.
The turquoise deposits of the Jarilla mining district are in two groups, about 2 and 4 miles, respectively, northwest of Oro Grande, a station on the El Paso & Southwestern Railroad, about 60 miles northeast of El Paso. One group of claims is about one-third of a mile west of Brice, a post office on a spur from the railroad 2 miles from Oro Grande. The other group is li to 2 miles north of Brice. Prominent among the deposits of the northern group are the old De Meules mine and the Laura claim of F. B. Stuart, of El Paso. In the i.ern group are the Alabama claims (locally called the "Tiffany" mine) and the claim of Luna, Moreno & Ascarate.
• Two new localities for turquoise: Am. Jour Sci., 3d ser., vol. 46, pp. 400-401,1893.