The weekly Arizona miner., 1872-03-30

world, by the reason that this was experi- enced in some districts of Nevada. The richest mines near Alamos, Sonora, not over 800 miles from here in straight line, stand par tially in limestone. The famous Batopllas mines, Chihuahua, worked for several cen'u- ries with great success stand in limestone. Grauwacke clay and bornblende slate, green stone, porphyry, limestone, syenite, granite and quartzite, are in Mexico, although not everywhere in the same degree rich in min ersl deposits. The richest ores at Catorze and Cerro de Pasco, Mexico, are found Tn limestone. Generally the principal ore de- posits in Cornwall and Devon, m England, occurs in clay slate and granite, also in lime stone. In mica slate, adjoining to other formations as syenite, limestone, etc, occur the great mineral deposits of copper, silver, etc, in the Banat in Hungary.
 "After having shown thus the continuance of number of rich mines in limestone on one hand, experience shows that ledges ire auently give out in granite, gneiss, slate, etc, on the other side. Consequently, the petro- graphical character of the wall rock alone don't furnish a conclusive criterion with re- spect to the perpetuity of mineral deposits. For this purpose, quite different symptoms must be investigated.
 "The minerals of the Silver Queen consist in sulphide of copper and sulphide of silver, oxide and carbonate of oxide of copper. The gangue is quartz and limestone. The richest silver ore was found at the place where on the northern wall the limestone changes into quartzite. Besides the Silver Queen, eighteen lodges have been located in it's neighborhood, containing mostly argent ferrous galena."
 Pima County.
 In the vicinity of the old towns of Tucson, Tumaccacori, Tubac, and many other places in Pima county, are scores of rich mines of gold, silver and copper, some of which were worked by the "ancients," with results the most satisfactory. The "moderns," too, have tried their luck at mining, and, were it not for the recent sectional war between the States and the everlasting war between Indi- ans and the citizens of Pima county, good and remunerativc mining would now be go- ing on at places where the savage is supreme The Patagonia and other mines paid we'll and will do so again, but not until the Apaches and bad Mexicans cease to be the evil power they are and have been in this unfortunate Territory.
 This brings us to
 Yavapai County,
 Our own high and mighty homemade dear to us by long residence, and 8 veneration for the many murdered comrades and acquaint- ances whose life blood has moistened its soil.
 In Wickenburg District, the Cusenbarry brothers are operating the Vulture mill and mine with good success, and there are hopes of their soon being enabled !to commence building a railroad to convey the ore from the mine to the mill.
 Bill Smith had ceased prospecting for wa ter near the mine, and will now, we believe, soon go to milling ore from his claim on the vulture lode, at his mill in Wickenburg.
 Our correspondent tells us that Mexicans have struck placer mines which pay from $ll to $l5 per day, but has not informed us by what mode the diggings were being worked. We presume, however, that the gravel was being packed in sacks to the Has sayampa, and washed in batteas and pans, the usual Mexican method of working dry diggings. Should this be the case the dig gings must be exceedingly rich, and, if ex- tehsive, will help build up large town at Wickenburg, which place is now growing apace.
 From the Bradshaw region the news is as good if not better, than any we have hereto fore published. E. J. Cook and D. c. More land, who arrived here few days ago, have been pleased to inform us that the Tiger, Benton, Gray Eagle, Lorenna and other lodes were producing "mighty rich rock" which was being sacked, and shipped to San Fran cisco. A piece of Tiger ore which MT. More land has presented us is more than two-thirds silver.
 The Del Pasco mill was running when Messrs. Cook and Moreland passed there, and Jesse Jackson--one of the owners-in- formed them that plates and battery were yellow with gold.
 From the Benjamin country we have a specimen of ore, q sample of that which is 
 now being taken out of the Benjamin lode, which sample is very rich in silver. And a note from Geo. Curtis informs us that the lode was growing richer and wider.
 c. T. S. Curtis and other persons arc at work upon other lodges which, we are told, give promise of great things
 The miners of Turkey Creek District have had to quit work on account of the hostility of the Indians. Mir. Dorgan says that were it not for the savages himself and other min CTS would now be taking out ore of sufficient richness to justify them in shipping it to San Francisco.
 The quartz and placer miners of Hassay- ampa and Lynx Creeks are busily engaged in their several claims, and Fredericks and Hammond's water-mill will soon be in run ming order.
 | Work is also heinz urosecuted upon mines