 | | Report (volume) | | all red stones: spinel, ruby, garnet, and rose tourmaline; the term "sapphire," to lapis lazuli and other...beauty of irregularly colored stones, such as tourmaline. UNIT OF WEIGHT The carat, meaning one-fifth...dikes contain a variety of gem stones, such as tourmaline, beryl (emerald, aquamarine), spodumene (kunzite...localities in California where diamonds have been found are: Smith River, Del Norte County; Trinity River...River, Trinity County; Spanish Creek and Gopher Hill, Plumas County; Placerville and Webber Hill, El Dorado |  | | Report (issue) | | Quadrangle, Chaffee County, Colorado GEOLOGICAL SURVEY Work done in cooperation with the Colorado State Mining...Deposits of the Poncha Springs SE Quadrangle, Chaffee County, Colorado By RALPH E. VAN ALSTINE GEOLOGICAL SURVEY...PROFESSIONAL PAPER 829 Work done in cooperation with the Colorado State Mining Industrial Development Board Description...ash-flow tuff _. Rhyodacite flow and tuff _______ Upper rhyolitic ash-flow tuff ___ Page 1 1 1 3 3 3 3...Springs SE quadrangle, Colorado Page .In pocket Index map of south-central Colorado ______ __ ____ Photographs |  | | Journal (issue) | | p a c if ic COAST HIGHWAY Gold-Nevado Co. California Hours: Tues-Sar. 10-5 Sunday 12-5 [evenings by...Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan Whatâs new in Colorado minerals? ...................................... Famous mineral localities: the Home Sweet Home mine ..................................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A |  | | Book (edition) | | MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive ÂĽem and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =¡ - ¡, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Book (edition) | | â _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! â : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils Americaâs Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL â
COLORADO GEM TRAILS AND MINERAL GUIDE â
SKETCH MAPS BY MIGNON WARDELL PEARL |  | | Report (volume) | | Beryllium Deposits of the Mount Antero Region, Chaffee County, Colorado By JOHN W. ADAMS A CONTRIBUTION TO ECONOMIC..._---_---The beryllium-bearing vein at the California mine.-___-_-----_-._-Location and history...___...95 95 98 98 98 100 101 101 101 103 103 The California vein_______________.______---------__--.---_...119 ILLUSTKATIONS Page FIGURE 26. Index map of Colorado showing location of Mount Antero area________...---------27. Part of the Garfield quadrangle, Colorado and contiguous unmapped area_______--__--__-- |  | | Journal (article/letter/editorial) | | black tourmaline with green beryl and smoky quartz. The specimen came from an abandoned mica mine about...they must be something. "These come from Caribeau Creek, Mile 107, Glenn Highway, but I have found them...few spots of whitish quartz. ARIZONA â "The Glove Mine, from where the fine wulfenite crystals have been...coming for years, has shut down as has the Defiance Mine at Gleason. Considerable material is still coming...not so common any more. "The Glove Mine is located in Santa Cruz County, Arizona, near the little town of |  | | Book (edition) | | ONYX ⢠PERIDOT* ⢠ZIRCON ⢠CARNELIAN TOURMALINE OPALS ⢠AOATI ⢠⢠AMETHYST URINE ⢠â˘...testing "scratched" scratch was Many which is area, Wet is calcite, a pocket knife blade tests... lOLITE k:^ RUBY /^^ RUTILE SAPPHIRE 1^ TOURMALINE CRYSTALS TOPAZ CRYSTALS 4 GEM hunter's GUIDE...six or eight different gem as color, its tourmaline may B are, in fact, A blue gem minerals...amethyst, tourmaline, beryl, topaz and spodumene. crystals, Areas in Maine, Connecticut and California, and |  | | Book (volume) | | SOUTHWESTERN QUADRANT Arizona, Arkansas, California, Colorado, Louisiana, Nevada, New Mexico, Oklahoma...Southwestern Quadrant Arizoni, Arkansas, California, Colorado, Louisicna, Nevada, New Mexico, Oklahoma...Mineral Location Numbers Arizona Arkansas California Colorado 258 Louis B30 ana HOW TO USE THIS...volumes, through very precise directions and accurate county maps, to get you to the best and most accessible...for the county in which it is located. This site number also appears under the given county in the text |  | | Book (volume) | | ..........................................49 California ..........................................................................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map .......................................... |  | | 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...are also referred to the general discussions of Colorado topaz in Eckel (1961) and Pearl (1963) and to |  | Defnet, Peter A., Wise, Michael A., Harmon, Russell S., Hark, Richard R., Hilferding, Keith (2021) Analysis of Garnet by Laser-Induced Breakdown SpectroscopyâTwo Practical Applications. Minerals, 11 (7) 705 doi:10.3390/min11070705 | Journal (article/letter/editorial) | | 98195, USA; defnep@uw.edu Department of Chemistry, Juniata College, Huntingdon, PA 16652, USA; richard... Smithsonian Institution, Washington, DC 20560, USA; wisem@si.edu Department of Marine, Earth and Atmospheric...North Carolina State University, Raleigh, NC 27695, USA Institute for the Preservation of Cultural Heritage...Heritage, Yale University, West Haven, CT 06516, USA Correspondence: rsharmon@ncsu.edu; Tel.: +1-919-588-0613...contexts: (i) as a primary component in the Earthâs upper mantle and lower crust, (ii) as a common constituent |  | | Book (volume) | | ..........................................39 California ..........................................................................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...pegmatites and ore-bearing veins. Prior to the California gold rush of 1849, this portion of Alabama experienced...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |  | | Book (volume) | | ..........................................39 California ..........................................................................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...pegmatites and ore-bearing veins. Prior to the California gold rush of 1849, this portion of Alabama experienced...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |  | | Book | | Pumice 5. 3. II. 6. 7. 8. 9. 10. 11. Rhyolite Colorado Mass. Felsite (Aporhyolite) Quartz-Felsite Porphyry...Porphyry South Dakota Rhyolite Porphyry (Nevadite) Colorado Pumiceous Rhyolite 13. 14. 15. 16. 17. 18...Granite Mass. Binary Granite N. H. Binary Granite Colorado Biotite-Granite R. I. Biotite-Granite Vermont...Sanidine-Trachyte Colorado Trachyte Porphyry S. Dakota 23. Bostonite 27. 28. 29. Phonolite Colorado Leucite-Syenite...Monzonite Colorado Phonolite-Nephelite-Syenite Series: IV. V. Perlite Colorado Vitrophyre Colorado Rhyolite-Granite |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Journal (article/letter/editorial) | | the years; and to clarify the distinction between mine, town, and district names. A brief list of the major...Three indices will be published in 1989: The California index will ap pear in the Mineralogical Record...(8075 W . Fre mont Drive, L i t t l e t o n , Colorado 80123), overall coordinator of the proj ect,...particular state or area, and to find out who else may already be working on that area. The ultimate result...O R A D O , Chaffee County California mine, west of Nathrop (near head of Brown's Creek, west of Mount |  | | Journal (issue) | | 2008 Table of Contents Collecting Minerals in Colorado - Peter Modreski ...........................Pg...Mining Update .......................... Pg. 20 Colorado Fossil Woods - Frank Daniels ............................................Pg. 28 Chalk Creek Feldspar Field Trip - Justin Zzyzx ........................com Copyright The-Vug.com 2008 Los Angeles, California 323-284-8360 Justin@the-vug.com Welcome to...on collecting minerals in Colorado by Pete Modreski, the informative Colorado petriďŹed wood article by |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such... *' ^ *D * D } '<&*=> 4B^ Diamond M Tourmaline ^P Ruby. Sapphire O Quartz crystal ^J^ Garnet...IOLITE SPHALERITE RUBY i^b TOPAZ CRYSTALS TOURMALINE CRYSTALS (CroÂť$-$ÂŤction ot righl) ^ \b7 CHRYSOBERYL...of feldspar that make parallel to is and tourmaline, and the pearly cleavage unmistakable. Kunzite...aquamarine, topaz, tourmaline, cyanite, or apatite. Conversely, such a chameleon as tourmaline may be found |  | | Report (volume) | | Arkansas..........Dr. A. H. Purdue, Nashville, Tenn. California........Mr. William H. Storms, San Francisco....A. F. Rogers, Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Journal (article/letter/editorial) | | Two Point claim, Pikes Peak batholith, Teller County. The Collectorâs Edge specimen, Jeff Scovil photo...Mail Stop 150, Box 25046 Federal Center Denver, Colorado 80225 pmodreski@usgs.gov C olorado is, of course...been written as guides to mineral collecting in Colorado. A classic, which went through three major editions...1951 version with a slightly different title), is Colorado Gem Trails and Mineral Guide, by Pearl (1951,...up-to-date guidebook to the stateâs minerals is Colorado Rockhounding, by Voynick (1994). Other published |  | | Book | | .3 COLORADO. of COLORADO. J. S. l GEORGETOWN, COLO. GEORGETOWN COURIER PRINT. 1887. 3 Bancroft...From a mineralogical point of view the wealth of Colorado exceeds that of In the metallic minerals almost...against. exceedingly superficial examination, the vast area yet unexplored, and the absence of scientific knowledge...to in the following pages Proceedings of the Colorado Scientific Society. Proceedings of the Academy...the U. S. Geological Survey. J. GEORGETOWN, COLORADO, January, 1887. S. RANDALL. : MINERALS |  | | Journal (article/letter/editorial) | | William Besse. 1714 S. Clarkson Street Denver, Colorado 80210 markivanjacobson@gmail.com B lue minerals...symbol to promote outstanding aspects of their county or state. Approval is usually not difficult because...is found only in a 32 Ă 80-kilometer rectangular area in southwestern Chambers and adjacent northwestern...explored for copper in the Cerbat Mountains, Mohave County. They acquired mineral rights to two sections of...of Duvalâs Mineral Mexico, Arizona conPark copper mine. tains numerous turThe town of Kingquoise deposits |  | | Journal (issue) | | on Amazonite 7.5 cm, from the Smoky Hawk claim, Colorado. Collected by the Dorris family; Tom Spann photo...Scovil photo. Vanadinite, 2.4 cm, from the Apache mine, Arizona. Collected by Evan Jones; Jeff Scovil photo...Miglioli photo. Fluorite, 7.4 cm, from the La Barre mine, France. Collected by Aubin Cosson; Niels Brouwer...left: Caledonite, 1.1 cm, from the Reward mine, California. Collected by Jeff Lines; Ben DeCamp photo...Thrill of Discovery by Wendell Wilson Epilog: On Mine Safety UThe Field-CollectorsV Anthony J. Albini |
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