 | | Journal (article/letter/editorial) | | Postcard view of the Waukon iron mine, Allamakee County, cia. 1912. John Taylor collection. ARTHUR E ...HAROLD L. PRlOR P.O. Box 111 Columbus Junction, Iowa 52738 halprior@ louisacomm.net When we began this...too, could be cited with many other localities. Iowa contains the type locality for one mineral, iowaite...December 2014 Figure 2. Map of Iowa showing the counties. Courtesy Iowa Geological Survey. ACKNOWLEDGMENTS...is courtesy of the Iowa Geological Survey. Localities by County Allamakee County Lansing, Lansing lead |  | | Journal (article/letter/editorial) | | Minerals in a Single Keokuk Geode from the Lower Warsaw Formation, Hamilton, Illinois, USA Nova Mahaffey *...University of Texas at Dallas, Richardson, TX 75093, USA; bobf@utdallas.edu * Correspondence: novamahaffey5@gmail...extensive optical and chemical analysis of a single Keokuk geode using electron microscopy (SEM) with energy...further investigation into the micro-minerology of Keokuk geodes. Our SEM/EDX analysis reveals an array of...millions of years. Complexity of Minerals in a Single Keokuk Geode from the Lower Warsaw Formation, Hamilton |  | | Report (issue) | | I s { IOWA ft 7 ■■• A * i . ;» \ P* A 7-. ■ «*"V ' r * < •+ ' 1 ’ T, / • k’-/ 5...i S' s I . " * • * «r- ‘ ; ' Geologist, Iowa Geological Survey ' .*4** =»*' I Paul*J. Horick...Jithill * v'v* l* Iowa Geolo^ica^Survey Educational Series 2 V . - -■' ( J Iowa Geological Survey...Educational Series 2 THE MINERALS OF IOWA by Paul J. Horick Geologist Iowa Geological Survey edited by Otto...STATE OF IOWA 1974 Library of Congress Catalog Card Number: 74-620075 Available from the Iowa Geological |  | | Journal (article/letter/editorial) | | 6, 68 9~9 1 , 1986. WELL-ORDERED KAOLINITE IN SIDERITE CONCRETIONS FROM THE BRAZIL FORMATION, WESTERN...Kaolinite, Ordering, Siderite. Soft, white kaolinite fills many shrinkage cracks in siderite concretions in...with the Keokuk, Iowa, kaolinite that is found in geodes (Keller et al., 1966). The Keokuk kaolinite...south of the town of Brazil, Gay County, Indiana. Dark gray to red siderite concretions as large as 50 cm...laboratories of Professor Storr. RESULTS AND DISCUSSION Siderite concretions that exhibited shrinkage cracks filled |  | | Journal (article/letter/editorial) | | Figure 2. Keokuk geode (7 inches in longest dimension) from Mississippian strata in southeastern Iowa. The...(This photograph,used as the cover illustration on Iowa Geology [1994], was supplied by B. F. Glenister...courtesy Patricia Lohmann, the artist who designs the Iowa Geological Survey bulletins; photograph by Tim Kemmis)...coarse-grained minerals, typically calcite, barite, or siderite (figs. 3A,B). Septaria have also been called septarian...Minerals recorded from geodes of the three-state Keokuk area. Minerals whose names have no symbol after |  | | Journal (article/letter/editorial) | | 00:11 06 November 2014 Eagle Mine, Cilman, Eagle County, Colorado W orld production of zinc is enormous...of the BalmatEdwards district in Saint Lawrence County (Smith and Figure 1. A fine example of jet-black...jet-black sphalerite (variety marmatite) on siderite from the Eagle mine, Gilman, Colorado. The 8.4-cm specimen...in the zinc ores of the Franklin mines, Sussex County, New Jersey (Palache, 1937).Although approximately...Morgantown (twins to 2 cm) in Berks County; the Thomasville quarry, York County (bright green crystals to 4 cm); |  | | Journal (article/letter/editorial) | | location a~ included at the end of each entry. Adair County Chariton River (40-04-05N 92-4 I -23W). septarian...septarian concretions about 2 miles north of the Macon county line. CALCITE crystals enclosing bundles of acicular...hematite, quartz (Broadhead 1873b, 1877). Audrain County Mexico, in fire clay pits and spoil piles: PYRITE...University Library] at 19:58 29 October 2014 Barton County McKarrow’s coal bank (37-37N 94-28W), 2.5 miles...deposits: PICKERINGITE, pyrite, siderite (Broadhead 1873b). Bates County Panther Creek, northwest of Rockville |  | | Journal (article/letter/editorial) | | Sphalerite and calcite, 5 cm across, Denton mine, Hardin County. Ross Lillie specimen. +!.+!+%% 34!2+ +./8 ...chalcopyrite, and sphalerite, 12.7 cm high, Hardin County. Marv Rausch specimen. 3(%,"9 -!#/50). /5 ....and barite, 6 cm high, Minerva No. 1 mine, Hardin County. Ross Lillie specimen. Figure 5 (above right).... Barite, 12.9 cm across, Denton mine, Hardin County. Ross Lillie specimen. Figure 6 (right). Fluorite...Fluorite, 1.9 cm on edge, Minerva No. 1 mine, Hardin County. Harris Precht specimen, Terry Huizing photo. Arthur |  | | Journal (article/letter/editorial) | | MINERALIZATION OF A LOCALITY IN NORTH CENTRAL MONROE COUNTY, INDIANA with reference to other Indiana localities...the (north) city limits of Bloomington, Monroe county, Indiana, on state highway 37. Here are found roadcuts...(impunctate shell) superfamily Davidsoniacea, Orthotetes Keokuk (Hall) superfamily Enteletacea Schizophoria sp...(to breadth of 55 mm.!) Brachythyris sp. Spirijer keokuk (Hall) Spirijer sp. Syringothyris texta (Hall)...horizon, is strongly related to that of the Keokuk Formation in Iowa, Illinois and Missouri, and possibly shows |  | | Book (volume) | | Dahlonega Co. and Rabum Co., and the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE:...agate, (banded, various colors), jasper. BIBB COUNTY MACON: at Holton Quarry, 7½ mi. NWagate; N |  | | Journal (article/letter/editorial) | | SSISSIPPIAN E H MIIncl udes Devonian in Hardin County DEVONIAN Includes Silurian in Douglas, Champaign...United States it is unique to Illinois, parts of Iowa and Missouri, and the eastern bluffs of the Mississippi...of Illinois, Wiscon sin, and Iowa. Thousands of fossil-rich siderite nodules in the Mazon Creek region...and Warsaw in Brown County in west-central Illinois, sister cities to Keokuk, Iowa, on the opposite side...average of 1,050 feet for Wisconsin, 1,100 feet for Iowa, 800 feet for Missouri, and 700 feet for Indi ana |  | | Report (issue) | | pyrrhotite, pentlandite, cubanite, calcite, dolomite, siderite, barite, ankerite. Distribution: Numerous localities...Republic. At Merthyr Tudful, Glamorgan, Wales. In the USA, from the Sterling mine, Antwerp, Jefferson Co.,...Lancaster Co., Pennsylvania. In geodes from Keokuk, Lee Co., Iowa; St. Louis, St. Louis Co., Missouri; Esterbrook |  | | Journal (article/letter/editorial) | | and Colorado). Bill Frier, 816 Carroll St., Keokuk, Iowa (Crystal geode halves and Miss. sand). Charles...polished eggs [chicken size] ). Amel Priest, Peru, Iowa (Keokuk géodes exchange for minerals or fossils). Owen...North Little Rock, Ark. — 72114 (Fine crystalline siderite and red and brown bauxite -— in any desired size...locality should be a tiny settlement or area, give ks county. Give as much information as you can so we may...send stamp for list THE PHILMAR CO. Box 13421 No. County Branch St. Louis, Mo. 63137 44102 21T |  | | Journal (article/letter/editorial) | | North Little Rock, Ark. — 72114 (Fine crystalline siderite and red and brown bauxite — in any desired size...and Colorado). Bill Frier, 816 Carroll St., Keokuk, iowa (Crystal geode halves and Miss. sand). W. F...minerals - Free lists). Amel Priest, Peru, Iowa (Keokuk géodes exchange for minerals or fossils). D...locality should be a tiny settlement or area, give its county. Give as much information as you can. WASHINGTON |  | | Journal (article/letter/editorial) | | and Colorado). Bill Frier, 816 Carrol! St., Keokuk, Iowa (Crystal geode halves and Miss. sand). Charles...Correspondence invited). Amel Priest, Peru, Iowa (Keokuk géodes exchange for minerals or fossils). Don...North Little Rock, Ark. — 72114 (Fine cryrtalline siderite and red and brown bnuxite — in any desired size...locality should be a tiny settlement or area, give its county. Give as much information as you can so we may |  | | Journal (article/letter/editorial) | | North Little Rock, Ark. — 72114 (Fine crystalline siderite and red and brown bauxite — in any desired size...and Colorado). Bill Frier, 816 Carroll St., Keokuk, Iowa (Crystal geode halves and Miss. sand). Joseph...minerals - Free lists). Amel Priest, Peru, Iowa (Keokuk géodes exchange for minerals or fossils). D...locality should be a tiny settlement or area, give its county. Give as much information as you can. WASHINGTON |  | | Journal (article/letter/editorial) | | and Colorado). Bill Frier, 816 Carroll St.. Keokuk, Iowa (Crystal geode halves and Miss. sand). Charles...well drilling. Some fl.) Amel Priest, Peru, Iowa (Keokuk géodes exchange for minerals or fossils). Will...North Little Rock, Ark. — 72114 (Fine crystalline siderite and red and brown bauxite — in any desired size...locality should be a tiny settlement or area, give its county. Give as much information as you can. BIG BANCROFT |  | | Journal (article/letter/editorial) | | and Colorado). Bill Frier, 816 Carroll St., Keokuk, Iowa (Crystal geode halves and Miss. sand). Charles...well drilling. Some fl.) Amel Priest, Peru, Iowa (Keokuk géodes exchange for minerals or fossils). Will...North Little Rock, Ark. — 72114 (Fine crystalline siderite and red and brown bauxite — in any desired size...locality should be a tiny settlement or area, give its county. Give as much information as you can. — • • » ' |  | | Report (issue) | | formation Cedar Valley formation Mississippian system Iowa series Kinderhook group Grassy Creek formation Louisiana...Osage group . Fern Glen formation Burlington and Keokuk formations . Warsaw formation . 2 2 2 3 3 3 4...59 Osage epoch 59 Fern Glen stage 59 Burlington-Keokuk tage 59 Warsaw stage 60 Meramec epoch 60 Salem...Springfield (fig. 1). It is entirely within Macoupin County and is bounded on the east and west, respectively...preparation of this report. C. E. Needham and Denard Lee served as field assistants in 1929 and 1930, respectively |  | | Report (volume) | | Boston Massachusetts 02108, USA 667 Lytton A venue, Palo Alto California 94301 , USA I 07 Barry Street, Carlton...Carlton, Victoria 3053 Australia DISTRIBUTORS USA and Canada Blackwell Scientific Publications Inc. PO...directly to CCC, 27 Congress Street, Salem, MA 01970, USA. 0305-8719/ 87 /$03.00 ISBN 0-632-0 I 939-5 Library...shelf carbonates: Burlington and Keokuk Formations (Mississippian), Iowa and Illinois 237 HUDSON, J. D...bicarbonate as calcite. Other carbonates (ankerite, siderite, witherite, strontianite) are also formed as a |  | | Journal (article/letter/editorial) | | Mississippi Valley type in Arkansas, Kansas, Missouri, Iowa, Wisconsin, Illinois, and Indiana. Fluid inclusions...belt, the upper Mississippi Valley in Illinois, Iowa, and Wisconsin, the fluorspar district in Illinois-Kentucky...mineralizing fluids. The Keokuk occurrence is at the three-comer junction of Iowa, Illinois, and Missouri...geodes in the Mississippian Warsaw Shale at Keokuk, southeast Iowa, is shown in Figure 8 (Keller et aI. ...by R. M .Coveney). Kaolinite in cracks within siderite concretions in the Pennsylvanian Brazil Formation |  | | Journal (issue) | | carbonate group of minerals including calcite, siderite, magnesite, smithsonite, and others. Don’t confuse...Denver Museum of Nature and Science.” Wikipedia Keokuk Field Trip This Weekend April 20-21 Field trip...leading a two day field trip to Keokuk Iowa to search for the famous Keokuk geodes. A couple carloads will...driving to and collecting at two different sites in Iowa. Then dinner somewhere, and a hotel room for the...polished slab of blue lace agate. Calendar Apr 20-21 Keokuk IA field trip Apr 20 Curry Auction – Belvidere |  | | Journal (article/letter/editorial) | | MINERALIZATION OF A LOCALITY IN NORTH CENTRAL MONROE COUNTY, INDIANA with reference to other Indiana localities...r arf found in Devonian limestones in Jennings County. These may reach four centimeters on an edge. Masses...mineral is often found psx after pyrite, marcasite, siderite or dolomite. At the locality north of Bloomington...in the Devonian limestones to the east of Monroe county and in northwestern Indiana produce some of the...calcites from Jennings county (see Sinkankas p. 362, fig. 177). From Shelby county comes pink calcite showing |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |
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