 | | 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."...longest dimension, associated with feldspar, smoky quartz, and zircon. The large fragment was said to be...been in the Crystal Park area. The largest fine-quality topaz specimens in Colorado occur in several separate |  | | Journal (article/letter/editorial) | | examples are easily the most glamorous of the beryllium minerals after beryl and chrysoberyl. Exceptional...is analogous to hydroxylherderite, a calcium beryllium phosphate. Euclase also occurs in greisens, in...crystals on quartz crystals found in small greisen deposits in the Badger Flats–Lake George area, Park County...County, Colorado. In the COLOR SPONSORS for the Connoisseur’s Choice column during 2016 are the Houston Gem...associated with bertrandite, fluorite, muscovite, and quartz. Specific occurrences include the Boomer, Mary |  | | Journal (issue) | | Loseyite, Mn4 Zn3 (C·O3) 2(OH) 10 from Franklin Sussex County, New Jersey: A New Physical Descriptioll Va·nKlng...fl;11nb11ri:. H.irdy&tonTowns.hip, S111,s.c.ll: County, NJ. 11 1 inter• ting 111111 Lo y hrm a mincr...and other igneous rock (Continues on page 8) COLORADO MINERAL & FOSSIL SHOW - DENVER Holiday Inn...The Minerals ofFranklin and Sterling Hill, Sussex County, New Jersey, U. S. G. S. Professional Paper 180...per square kilometer! Although the world-leading USA has more than ten times the number of new species |  | | Book (edition) | | from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...are so widespread, as in the case of the alluvial quartz gemstones of the Midwest, that it is impossible...formations containing cryptocrystalline varieties of quartz, such as agate and petrified wood, extend over...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 |  | | Catalog/List | | Bank Information: JP Morgan Chase Bank, N.A. 270 Park Avenue, New York, NY 10017 Account Name: Heritage...polished rim grades from deep purple amethyst to white quartz to a fine grey agate. In fine condition, the “porta...referred to as “Brandberg Amethyst’. The colorless Quartz prisms gradually become violet and finally deep...are occasional green ‘phantom’ inclusions in the Quartz crystals. The Feldspars are light tan and terminated... 38009 ROSE QUARTZ ON QUARTZ Minas Gerais, Southeast Region, Brazil Deep pink Rose Quartz crystals are |
|
