 | | Report (issue) | | characteristic constituents of the metamorphic rocks. Garnet is a conspicuous gneiss may be rich in chlorite...diamonds is diamond, quartz, rutile, almandite garnet, topaz, zircon and epidote. A diamond weighing...considerable amounts in the wall rock at the Argonaut mine, Josephson (32). County: It is found in the copper-bearing...occurs in brecciated tuff duced at the Leviathan mine, Leviathan Peak of Markleeville, W. W. Bradley (35)...deposited by solfataric action occurs in the Defiance mine. an area of several acres, 9 miles east of Coso |  | | Report (issue) | | the Mojave Desert area and of Death Valley by a group of U.S. Geological Survey workers, with the collaboration...of California, was soon able to assemble a small group of scientists who, in their ability and dedication...stone hammers and called his claim the Stone Hammer mine. This find aroused so much interest that the San...circumstance the location was named the Stone Hammer mine. "The State Mining Bureau reported at about the...or basaltic rock reaching outward from a central group of extinct craters. These flows extend for many |  | | Report (issue) | | stone hammers, and called his claim the Stone Hammer mine. This find aroused so much interest that the San...circumstance the location was named the Stone Hammer mine. "The State Slining Bureau reported at about the...or basaltic rock reaching outward from a central group of extinct craters. These flows extend for many... the most important, was the famous New Almaden mine, near San Jose, and the other, Last Chance Peak...courtesy M'ard's Natural Science EstablishFigure 4A. mine, mcnt. Inc., '\V2H.). FIGURB 4B. GKM THUKMALl |  | | Book | | sulfides, oxides, and so on. Within each major group the minerals are presented generally according to...shown. The occurrences of each mineral species or group of species are reported by county of occurrence...diorite A group of plutonic rocks intermediate in composition between acidic and basic rocks. drift mine Adit(s)...zw 0 Q. a:, ~~ 0 SYMBOLS Lode gold mine Placer 9old mine SCALE 0 2 3 MILE S ===---=== AMADOR...or more in thickness, was found in the old Eureka mine (Sec. 8, T. 6N, R. 1lE, M.D.M.). C. A. Logan, 1934 | | | Book | | sulfides, oxides, and so on. Within each major group the minerals are presented generally according...shown. The occurrences of each mineral species or group of species are reported by 1-2 shows the county...diatreme A diorite breccia-filled volcanic pipe group of plutonic rocks intermediate from the contact...composition between acidic and basic rocks. drift mine Adit(s) driven into gravel. Characterized by the...Schist, slate and metachert Lode gold mine Plocer gold mine MILES AMADOR COUNTY CALAVERAS COUNTY |  | | Journal (volume) | | Bethlehem Steel Co., South Bethlehem, Pa. Katsuno Coal Mine, Chikusen, Japan. *Adachi, JixzOO U. S. Geol. Survey...Carl E., Mine Owner, Ambrosius Hermanos, Guanacevi, Durango, Alexico. *Ambrosius, Julius E., Mine Owner...*Bell, James Mackintosh, Geologist Care Stanley Mine, Idaho Springs, Colo. ’99 **Bell, Jno. Middlesborough...Co., Syracuse, N. Y., 1902 *Belshaw, Charles M., Mine Owner. ^Benedict, William de L., Min. Engr. ^Benjamin...111. ’75 293 Commonwealth Ave., Boston, Mass. Mine Mgr. and Supt., Care McCormick & Salt Lake^City |
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