 | | Journal (issue) | | 2020 CAPTIVATED BY CREEDE Evolution of a Silver-Mining Boomtown METAMORPHIC INDEX MINERALS ROCK & GEM...ROCKNGEM.COM VOL. 50 NO. 06 ⢠JUNE 2020 10 SILVER MINING SURVIVOR Creede Colorado Navigates Economic Transition...20 SOUTHWEST SUMMER Exploring San Juan Mountain Mining History 50 FIELD TRIP FOCUS Making Memories and... 30 TEOTIHUACAN 58 Valuing Vanadinite Jade, Obsidian and Shell Treasures From Ancient Mexico By Helen...Serras-Herman REGULAR COLUMNS Witness to Moroccoâs Modern Mining Rush Field Notes ............................ |  | | Journal (article/letter/editorial) | | sent us some small lustrous black pebbles of obsidian. In her letter, dated Nov. 14, 1957, she wrote:...about 35 miles northwest of Flagstaff, in Coconino County, a pineforested volcanic area. The elevation is...Indian artifacts and there are black and brown obsidian chippings everywhere, as well as some scraps of...of pottery. We have found several nice obsidian points and two manos, plus scrapers of nice cherts and...cones are black pebbles of what 1 believe to be obsidian, and clear yellow plagioclase. I gathered some |  | | Journal (issue) | | to preserve and promote the unique geologic and mining heritage of Wisconsin while underscoring the importance...professor. In 1955 Dr. Weis began teaching at Lawrence University in Appleton, Wisconsin. Ten years later...say the least. Obsidian Rock (SRM 278) SRM 278 consists of finely powdered obsidian rock obtained from...history are welcomed additions to my âmineral and mining memorabiliaâ collection. If you have some of these...become a reality. Figure 5 (Left) - Wisconsin Mining Display. Both are authorâs images. Figure 6 (Right) |  | | Journal (article/letter/editorial) | | Mountain provinces, southwestern New Mexico, South Dakota, and Texas) âwhere Precambrian rocks are shallow...Mountains provinces, southwestern New Mexico, South Dakota, and Texas (referred to as continental interior...3) Hinsdale basalt, Jarosa Mesa (Re 6) Obsidian (Re 3) Obsidian (Re 3) -Rhyolite (Re 3) Leucogranite,...feldspar (Ta 1) Obsidian (Ta 1) Adamellite, feldspar (Ta 2) Granite, feldspar (Ta 2) Obsidian (Re 1) Analytical...18164 18181 Obsidian Average Olivine basalt (Re 4)f Borrego Mesa (Re 4)$ Average Obsidian nodule from |  | | Journal (article/letter/editorial) | | gold. From the South Fork of Yuba River, where it is crossed by U.S. 40 in Placer County, Calif., we have...received from Otto G. "Sand collected in Moffat County, Colo., at junction of Yampa and Green Bartels..."Sending under separate cover some consisted of galena, garnet, cerussite, pyromagnetite sand from the...zircon sands. The galena sand is medium grained Salmon River Placers, Mineral Hill District, Lemhi Co., Idaho...investigating his black orange wulfenite and lead-gray galena. sand with the hope that we will find some Garner |  | | Journal (article/letter/editorial) | | ALABAMAâArbacoochee, a tiny town in southern Cleburne County of N / E Alabama, was famous over 100 years ago...color) have been found in the Silver Mountain district, Alpine Co., Calif. COLORADO-"Prof. Richard M...octahedra in quartz from the Mica Lode, Royal Gorge District, (Fremont Co. ), Colorado. The garnet ranges in...miles west of Shoshone, near Bliss, in Gooding County, Idaho. This is on Highway 30. Hope you can identify...a handsome one. It is a cellular mass of black obsidian with a beautiful blue-green iridescence. ILLINOISâ"We |  | | Book (volume) | | .....................................356 North Dakota ............................................................................................427 South Carolina .................................................................................430 South Dakota .............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ............................... |  | | Journal (issue) | | Wulfenite from the Red Cloud (photo credit)mine (La Paz County), Arizona, is world famous. (3.9 cm high) Jeff...them. I also have light-blue chalcedonies from South Africa, Turkey and Montanaâdo they all have the...are right. Sam tells me he is mining for diamonds in the Golconda district of India now. âBob Jones Senior...when a large watercourse was encountered during mining. Two local collectors were allowed to collect the...Desert Museum. Rock & Gem The Thompson specimen-mining team recovered this example of composite wulfenite |  | | Journal (issue) | | Keokuk geodes? By Jordan D. MarchĂŠ II OBSESSED WITH OBSIDIAN 36 Knappers love this mineraloid with an edge...the Pima County Board of Supervisors recognized that the beautiful, 90-year-old Pima County Courthouse...Revival architecture in the United States. The Pima County Board entertained the idea of creating a museum...mineral museum into the more accessible downtown Pima County Courthouse location. The university immediately...recognized the potential of the move, and Pima County pledged $18.4 million dollars to completely renovate |  | | Book (edition) | | associated with such rocks. Because hard rock mining amateur will usually get is tedious and expensive...matrix rock. Polished Fairburn agate from South Dakota. \\ jfc^ ^ ^ * Emerald in matrix. Emerald...source near the east of James' summit bay and south of Hudson bay in Labrador. Only by coming from...recent perhaps because of the decline in placer mining for gold in made dis- faces helps to distinguish...mine, Racooche Valley, White Co. 1866 Vs White County Daniel Light form, % mi. NE Less than 1887 |  | | Report (volume) | | the Fort Payne Formation (Lower Mississippian) in south-central Kentucky, by Roy C. Kepferle and Richard...Pony Trail Group in the Cortez Mountains, Eureka County, Nev., by J. Fred Smith, Jr ________________________...Limestone Members of the Fort Payne Formation, south-central Kentucky -_ ____ 5. Diagrammatic section...relation of the Fort Payne and Borden Formations in south-central Kentucky __ 6. Geologic map of Precambrian...Volcanic Supergroup. Northwestern Wyoming and south-central Montana. Ahorn Sandstone/Quartzite Precambrian |  | | Journal (issue) | | 15 Manganese Nodules and the CIAâs Deep Ocean Mining Venture ....................... 16 Drop of Water...................... 19 Ever Come Across Green Obsidian? ...............................................American Federation of Mineralogical Societies & South Central Federation of Mineral Societies. All meetings...silver had been mined, but it was not like other mining areas such as Virginia City which followed a vein...know where to dig next. They mentioned that other mining had occurred there many years ago, such as for |  | | Journal (issue) | | alpha-supply.corn -" .... ⢠NW Federation Show King County Fairgrounds Enumclaw, WA August 31, Sept 1 & 2...THEINTERNET by Brinda Gill The Birthplace of Modern Mining 44 It got its start in Germany; by Bob Jones...Buttes Obsidian 64 Visit Oregon's best collecting site; by Robert Beard Missouri's Lead-Mining Legacy...Gems¡. Puyallup Valley Gem & Mmeral Club: King County Fairgrounds, Fri. 10-5. Sal 10-5, Sun 10-5: admission...demonstrations. displays, swapp,ng, lluorescent mlnerals, county store, Junior ac1ivi1ies, NFMS convenhon. field |  | | Book | | Department of Geological Sciences Duluth MN 55812-2496 USA grapp@d.umn.edu ISBN: 978-3-540-78593-4 e-ISBN:.... . . . . . . . . . . . . . . . . 64 Outcrops, Mining, and Quarrying . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . 4.4 Obsidian . . . . . . . . . . . . . . . . . . . . . . ....quartzite, Boulder Lake Reservoir, St. Louis County, Minnesota, USA . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . 83 Major obsidian deposits of Europe . . . . . . . . . . . . . |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...lost some of its high status when the abundant South American supply came on the market. Promotion of...microscope. A few gem materials notably opal and obsidian are amorphous, lacking crystal structure altogether...luster is brilliant, mirrorlike, such as is seen in galena or polished hematite. Diaphaneity Another means...igneous rocks do not quite fit these categories. Obsidian, an extrusive rock, is a glass of much the same |  | | Report (issue) | | SURVEY CIRCULAR 699 Gold in the Black Hills, South Dakota, and How New Deposits Might Be Found CONTENTS...and geologic map of the Black Hills of western South Dakota and adjacent parts of Wyoming ....................... . m 3 Gold in the Black Hills, South Dakota, and How New Deposits Might Be Found By James...production of 34,694,552 troy ounces of gold mined in South Dakota through 1971, about 90 percent has come from...Fortune ............. . Other deposits: 11 Lawrence County (especially Alder Creek, Cleopatra, Bismarck |  | | | | striated one of arsenopyrite on rounded, grey galena and surrounded ce ne white calcite, from!iheBluebell...stibnite, cobaltite, arsenopyrite, molybdenite, galena are included here. Oxides: Minerals with oxygen... black), p. 30 | stibnite (lead grey), p. 62 | galena (silver grey, dull lead), p. 56 | molybdenite (lead...gabbro (p. 252) andesite (p. 260) basalt (p. 262) obsidian (p. 266) Sedimentary Rocks Colour Light Grain...comprises the core of the Continent. 2 The St. Lawrence Lowlands form the southernmost portion of Canada |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...create a steady market and a sentithe abundant South mental regard for that gem. make Rarity helps... â â A few gem materials notably, opal and obsidian are amorphous, lacking crystal structure altogether...Connecticut, New Hampshire, North Carolina, South Dakota, liquid in the solidifying dike. and California...region, less At meet the rocks of and to the south the Mississippi delta and vast coastal plain. In |  | | Journal (issue) | | AN INFLUENTIAL IRON ORE MINERAL + ARTISANAL MINING A Complex Industry ROCK & GEM ⢠Vol. 49 No. 05...Magma Dot Wine Country Bill Rozday 26 ARTISANAL MINING Itâs Dangerous, Illegal, Undocumentedâand Booming...specimens from the Black Rock manganese area of South Africa also enjoy fine prismatic and pyramidal hematite...knew that the road crossed the epicenter of Lake County diamond country. The specimen I found was a xenolith...brightness reminded me of the high-priced Lake County diamonds set in jewelry online. These stones shine |  | | Journal (issue) | | Garnet (New Mexico) Prairie Agates PROJECT: (South Dakota) Bola, Brooch or Pendant? âCOLLECT AND PRESERVEâ...until 4/28/15 U S $5.99 0 74470 02033 PRINTED IN USA 2 04 THAILANDâS âGEMSTONE TRIANGLEâ 2 www.rockngem...turquoise and obsidian were well known Golden-brown, banded chalcedony from South Dakota and Nebraska...taken hold, of sulfur to make this rock of old, Galena, the name that it now bears, spinel law is my favorite...Wholesale and retail show; Gem Faire Inc, Lane County Events Center; 796 W 13th Ave; Fri. Noon-6pm, Sat |  | | Journal (article/letter/editorial) | | Canada. 276 KENTUCKY FOSSILS-New find in Bath County. Brachiopods, platystrophias, Ordovician. Five...Specimen in matrix, 2V2", $1.25 postpaid. Anderson County Corals, fine, reddish, 2 " x 3 " , $1. Satisfaction...specimens. All for $7.50 postpaid. Morton Minerals & Mining, 21423 Highway 66, R.F.D. 1, Barstow, Calif. IDAHO...piece guaranteed for fortifications. Postpaid in USA. The Breitweisers, 510-B N. Division, Powell, Wyo...polished tumbled agate, jasper, etc., postpaid in USA for only $5.00. George W. Owens, 150 HI. Dr., Jacksonville |  | | Book | | appreciation is also extended to the Los Angeles County Museum of Natural History, especially to Miss...Oddities and Curiosities Geodes Meteorites Tektites Obsidian Crosses of Stone Fossils ike} Gemstones 14...York State, Pennsylvania, New Jersey, and the south- ern states are actually heavily mineralized, and...specimens of various ore minerals abound in South Dakota, Minnesota, and Missouri. Native copper, sapphire...rockhound, along with such minerals as amethyst, obsidian, agate, petrified wood, turquoise, moss agate |  | | Journal (article/letter/editorial) | | Middleburg, N.Y. I L L I N O I SâLustrous, coarse xline galena has been found in the Aleo lead mine in Cave-in-Rock...13, Kans. "This petrified wood came from Barber County, Kansas. I am not sure of its exact location but...mine southeast of the city."ânote sent in by A/2C Lawrence E. Wright, 55 PMS, Box 119, Forbes AFB, Kans....specimen of gray oolitic limestone sent us by Lawrence Chapman. 41 Church St., Franklin, N.J. ROCKS AND...), New Mexico, This was once an important iron district, and is located 50 miles northeast of El Paso |  | | Journal (volume) | | Chief Geologist Logan, District Mining Engineer W. Burling Tucker, District Mining Engineer Reid J. Sampson...Assistant District Mining Engineer Chas. V. Averill, District Mining Engineer J. C. O'Brien, District Mining...Statistician and Curator James M. Little, Junior Mining Engineer (Librarian) Elisabeth L. Egenhoff, Editor...Geology of Palm Springs-Blythe Strip, Riverside County, California, by William J. Miller Geology of Parts...Parts of tbe Barstow Quadrangle, San Bernardino County, California, by William J. Miller 9 11 73 Geology |  | | Book | | (noncrystalline) Opal Beryllonite Brazilianite Obsidian Scapolite Apatite Fluorite Sphalerite Chrysoberyl...interesting one, is the rocks and minerals of your county or state. Itâs amazing how many people are ignorant... 2620 S. Pearl Street, Denver, Colorado 80210. South Central FederationâAnita Shier, 6315 Vanderbilt...small nodules of obsidianâvolcanic glassâthat have weathered out of large obsidian flow. Four weeks of...amorphous mineral you're likely to encounter is obsidianâvolcanic glass. Many of these minerals are reasonably |
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