 | | Report (issue) | | Geology and Beryllium Deposits of the Lake George (or Badger Flats) Beryllium Area, Park and Jefferson...Jefferson t:-1 Counties, Colorado g ~ s:p ~ I> li:tl ~ GEOLOGICAL SURVEY PROFESSIONAL PAPER 608-A g ... Geology and Beryllium Deposits of the Lake George (or Badger Flats) Beryllium Area, Park and Jefferson...Counties, Colorado By C. C. HAWLEY GEOLOGY AND ORE DEPOSITS OF THE SOUTHERN TARRYALL REGION PARK AND JEFFERSON...COUNTIES, COLORADO GEOLOGICAL SURVEY PROFESSIONAL PAPER 608-A A study of the nonpegmatitic beryllium deposits |  | | Report (issue) | | Distribution of Beryllium Tin, and Tungsten in the Lake George area, Colorado Distribution of Beryllium Tin, and...and Tungsten in the Lake George area, Colorado By C. C. Hawley and W. R. Griffitts GEOLOGICAL SURVEY...------Boomer mine area -------------------~---------------------------Redskin area -----------------...----------------------------------------------------~ary Lee mine area ------------------------------------------------Geology...----------------------------------------------------Tappan Mountain area -----------------------------------------------Geology |  | | Journal (article/letter/editorial) | | COLORADO TOPAZ Topaz, Al Si0 (F,OH) is one of Colorado's better known gem minerals. Though Col orado...(PJM), 975 (TCM) Box 25046, Federal Center Denver, Colorado 80225-0046 A ccording to Cross and Hillebrand...discovery of Colorado topaz was made about 1880 by a Mr. Thiebald,* "a prospector of Colorado Springs."...been in the Crystal Park area. The largest fine-quality topaz specimens in Colorado occur in several separate...different publications; the correct name is Thiebaud (George White 1996, pers. com.). 306 ROCKS & MINERALS |  | | Book (edition) | | from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...way assisted me in the preparation of this work: George Ashley, Warren D. Baltzley, Dwight Barnes, Arnold...Dunn, Roy Elliott, Leonard Enos, J. A. Ferguson, George M. Francis, Judith W. Frondel, Charles W. Fryer...pegmatite, Baja California 19. Sequist Ranch topaz area, Texas 20. Little Three mine, Ramona, California...Miners at Crystal Peak, Colorado 30. Pegmatite pocket, Crystal Peak, Colorado 31. Spodumene, Pala Chief |
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