About the Book
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ...microperthitic orthoclase, quartz, oligoclase, biotite, tourmaline, muscovite, apatite, zircon, and iron ore. P. R. C. 1395. I. Granite porphyry, 3J miles north of Waco Junction, Bisbee quadrangle. 'SR. 1 of alaskase. Contains quartz, orthoclase, oligoclase, biotite, muscovite, zircon, and iron ore. P. R. C. 1396. Rocks H and I are described by F. L. Ransome in P. P. 21. Analyses by George Steiger, record No. 2034. The following rocks, from Mohave County, are described by F. C. Schrader in Bull. 397. Analyses by G. Steiger, record No. 2328. J. Minette, Champion mine, Cerbat district. Shoshonose. Contains andesine, biotite, augite, orthoclase, iron ores, and apatite, with some secondary chlorite. K. Trachyte, Goldroad mine. Omeose. Contains orthoclase, albite, quartz, iron ores, apatite, and zircon, with secondary serpentine, epidote, and sericite. L. Trachyte, Goldroad mine. Contains sanidine, biotite, chlorite, epidote, serpentine, and quartz. 1. TONOPAH DISTRICT. Rocks A to F, inclusive, represent hornblende andesite and its various alterations. Collected by J. E. Spurr, and partly published in P. P. 42. Analyses by George Steiger, record No. 2067. A. Hornblende andesite, California-Tonopah shaft. 1'antellerose. The freshest obtainable. Contains andesine, pseudomorphs of chlorite after hornblende, some quartz, pyrite, and apatite. B. Hornblende andesite, also relatively fresh. No. 2 shaft. Kallerudose near panlellerose. Contains partly altered, striated feldspars, and pseudomorphs of quartz, pyrite, etc., after biotite and hornblende. The rock is partly altered to quartz and muscovite. C. Kaolinic alteration of the andesite, from a pit in the saddle between Halifax shaft and the Mizpah mine. Entirely altered to quartz, kaolin, and muscovite. D. The andesi...
