 | | Journal (article/letter/editorial) |
| COPPER ORES MARYLAND. ROBERT M•. OVERBECK. INTRODUCTORY. Copperhas beenmined in Maryland sincepre-Revolutionary...generalideaof the formerimportance of coppermining in Maryland. An investigationof these depositswas undertakenwith...secondary occurrences of bornite,chalcopyrite,and chalcocite. Certaindifficultiesconnectedwith the work preventedits...vein rock, however, and a very careful searchof the mine dumpselimina.tedsomeof these difficulties. The...Hills mine; (2) the Eastern Carroll Countymines, comprisingthe Patapscomine, the Mineral Hill mine, and |
 | | Report (volume) |
| the Geological Survey's annual report entitled " Mineral Resources of the United States" (the volumes for...of a century. During that period, however, the mineral resources of the United States have been enormously...showing the composition and character of each mineral and the location of. its principal deposits. Many...These are only examples of notable changes in the mineral production of the United States and of correlated...changes in the appraised value of some of the mineral deposits. In this list, as in the earlier lists |
 | | Report (volume) |
| ............................................. Maryland.................................................the Geological Survey's annual report entitled "Mineral Eesources of the United States" for 1882 and 1887...more until 1914. During that period, however, the mineral resources of the United States were enormously...resources of the country. Many changes in the mineral industry other than increase in production have...These are only examples of notable changes in the mineral production of the United States and of correlated |
 | | Book (edition) |
| ALBERT STATES WILLIAMS, Jr. ABSTRACT FROM "MINERAL RESOURCES OF THE UNITED STATES CALENDAR YEAR 1687"—DAVID...UNITED A PARTIAL LIST OF ORES, MINERALS. AND MINERAL SUBSTANCES OF INDUS TRIAL IMPORTANCE, ARRANGED...are based upon those published in the volume of Mineral Resources for 1882, pages 6G4-775, and very closely...principal occurrences of the ores, minerals, and mineral substances of industrial importance of the several...original lists were compiled, the rapid growth of the mineral industries of the country, changes in the channels |
 | | Journal (article/letter/editorial) |
| that “Azurite must be considered a cornerstone mineral of any col- lection.” Such is still the case,...in keeping with the African mineral theme of the 2002 Tucson Gem and Mineral Show, three azurite specimens...Choice. Azurite is perhaps the most familiar blue mineral, ranging from pale blue in some earthy varieties...apparently quite unusual. Pseudomorphs of copper, chalcocite, jarosite, atacamite, willemite, smithsonite...tetrahedrite-tennantiteare known. Azurite is a secondary mineral found typically in the upper oxidized portions |
 | | Journal (article/letter/editorial) |
| observed in every case. It is of interest that chalcocite suffered decomposition while bornite and chalcopyrite...S National Museum The old copper mines of Carroll County, Marl'land, are known to mineralogists as the...specimen of a deep blue mineral at the Mineral Hill mine and the same mineral was found at the Patapsco...Patapsco and Springfield mines by Dr. Foshag. This mineral had much the appearanceof lazulite but upon optical...of cobalt.2 Trial of a thick section of this Mineral Hill occurrence showed only a taint, hazy band, but |
 | | 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) |
| to very small specimens or to the powder of the mineral' It was thought that the phenomenaproduced in this...have gone through the fire and to determine its mineral nature, original appearance and the changes produced...the original appearance of the mineral was determined from the mineral itself. In some cases even the...larger than tZ" in diameter. These shorv lhat the mineral melted and that the melted part solidified on the...cracks in the mineral. (5) Galena. Cubes of the mineral square. up to 7f" (6) Chalcocite. Specimen of |
 | | Book (volume) |
| fossils, Illinois has little to offer gem and mineral collectors, even though the state produces more...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...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods |
 | | Book (volume) |
| fossils, Illinois has little to offer gem and mineral collectors, even though the state produces more...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...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods |
 | | Report (issue) |
| CONTENTS Introduction 1 Scope of report 4 Mineral collecting 5 Acknowledgments 6 Introduction..." -. _>-.--_>-->.-..-. Triassic deposits 31 Mineral localities 38 District of Columbia Mavtrl a Tirl...^ Anne Arundel County 43 Baltimore County 45 Howard County - Montgomery County 88 Prince Georges...Georges County Virginia 74 . 120 129 Arlington County 129 Fairfax County 131 Fauquier County 139...139 Loudoun County 143 Prince William County 149 Diabase quarries of northern Virginia 155 CAPTIONS |
 | | Journal (article/letter/editorial) |
| November 2014 Covellite Summitville, Rio Grande County, Colorado Two minerals are typically formed when...exposed to near-surface weathering environments: chalcocite and the somewhat less abundant covellite. Both...discovery in an active mine makes them briefly available to collectors. Chalcocite has been featured in...this issue with the upcoming 2006 Denver Gem and Mineral Show (15–17 September), a fine Summitville covellite...Choice specimen. Covellite is a relatively easy mineral to identify based on its perfect {0001} cleavage |
 | | Journal (article/letter/editorial) |
| the systemis dominatedby the coexistence of the chalcocite-digenite solid solution•vith cobaltsulfides (COS2...(<_460øC)anddigenite(_<70øC),andthe appearance of low chalcocite(103øC), djurleite (93øC), and anilite (70øC)...to obtain "carZambian Copperbelt,however,this mineral seriesis rollite" for comparison,assignedthe name...ChemicalIndex of Minerals still reFinksburg,Carroll County,Maryland (Faber, 1852), tain sychnodymitefor nickel-rich...400ø and600øChasbeenoutlined by Craig known as mineral species. These phases (their andHiggins(1973) andWang |
 | | Report (issue) |
| geographic coordinates and, where applicable, by county and section, township, and range. Both published...nickel-plus-copper in the deposit. The Gap mine (Pennsylvania) and the San Julian mine (California),are examples of...deposits varies widely. Some, like the Bluebird mine (Arizona), are small deposits containing 16 mostly...mostly only cobalt minerals. At the Standard mine (Oregon), the , cobalt minerals are associated with...intermittently between the years 1763 and 1853. The Gap mine, Pennsylvania, supplied nickel and cobalt to United |
 | | Book (volume) |
| .......................................... xi Mineral Locations by State Alabama ................................................................210 Maryland ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map .......................................... |
 | | Journal (article/letter/editorial) |
| Clearwater_ --- - .'L- 'I i INDEX "'1": I ') MINERAL LOCALITY ·~~e" I ' I' - BenewahI • r (' /----...its pyromorphite, Idaho also boasts many other mineral species. ( :\.. -~:/ Idaho <....: (_ ", I ...- - : r -\ THIS INDEX BRIEFLY DESCRIBES the mineral localities in Idaho; all known localities that...low population of Idaho, it receives much less mineral collector attention than some other states. For...geologic data have not been recently prospected by mineral collectors. Recently, politics have been playing |
 | | Report (issue) |
| sulfur by superheated water through wells at Sulphur mine, Louisiana, are fully detailed. Exploration and... (annual publication), Pyrites and sulfur, in Mineral Resources of the United States. U. S. Bureau of...1924-1932 (annual publication), Pyrites and sulfur, in Mineral Resources of the United States. U. S. Bureau of...(including pyrite and byproduct sulfur compounds), in Mineral position of the United States, by the staffs of... 1919, Sulphur and pyrite: U. S. Geol. Survey Mineral Resources U. S. , 1916, pt. 2, pp. 405-418. Describes |
 | | Journal (article/letter/editorial) |
| Photographs JanuaryFebruary: Rhodochrosite, N’Chwaning mine, Hotazel, South Africa. Martin Zinn specimens, Erica...Cryo-Genie mine, San Diego County, California. Natural History Museum of Los Angeles County specimen,...Ground Hog mine, Gilman, Eagle County, Colorado. Natural History Museum of Los Angeles County specimen...Bernardino Rivadavia (1780-1849, see Who’s Who in Mineral Names Berry, R. R., Large Smoky Quartz and Fluorite...309 Brochantite, New Hampshire, 416 Brookite, Dodo Mine, Subpolar Urals, Russia, R. B. Cook, 192-95 Buchholz |
 | | Report (issue) |
| ORE DEPOSITS OF THE SIERRITA MOUNTAINS, PIMA COUNTY, ARIZONA. By F. L. RANSOME. INTRODUCTION. The Sierrita...those near Twin Buttes, on the south; those near Mineral Hill, on the north; and those near the abandoned...camp, between Twin Buttes and Mineral Hill. The ores near Mineral Hill and Twin Buttes occur in typical...from Tucson for about 18 miles to Mineral Hill. From Mineral Hill a newly constructed highway leads south...much feldspar, mainly plagioclase, with rock and mineral fragments of various kinds. Rock composed of such |
 | | Book |
| abandoned mining districts, where valuable mineral ores are present and man generally absent. He tells...commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...provides a comprehensive, alphabetical listing of 400 mineral species and an outline of the essential chemical...Mineralogy 2 Preparation for Mineral Collecting 18 3 Your Mineral Collection 32 4 Techniques of...Ore and Mineral Essentials of a Small 61 232 PART The Making 43 II 5 7 3 III Mine PART 267 |
 | | Journal (article/letter/editorial) |
| New Hampshire Mineral Locality Index Downloaded by [University of Newcastle, Australia] at 15:01 05...entrance and arch of the Palermo mine, North Groton, Grafton County. Rob Lawrence photo, courtesy Bob...is one of the lowest in annual mineral production, the number of mineral collecting localities and the...recorded number of mineral species is quite high. Hawes (1878) reported 95 mineral species, Meyers and...collecting the state’s minerals and developing its mineral industries. Although the latter never sustained |
 | | Report (volume) |
| _ 16 Warren mine ____ 16 Milan mine ____________.._____________________ ._ 18 Lyman mine _______ _ _________...____________ '.__ 24 Copperfield or Ely mine ("Vershire mine).______i______ 24 History______________...character of ores____________________ Hartford County deposits__________________________ Simsbury (Newgate)...mine_________________________________ New Haven County deposits________________________ New York ____..._______________ The ores__ _ _ _____ _ American mine ________'________L ______________ Workings and equipment |
 | | Book |
| (A Biography) Jay Ellis Ransom EMS of and MINERAL AMERI A A Guide to Rock Collecting HARPER & ROW...bdg.) 1 For America's millions of gerr1 and mineral collectors, but especially for Karl Denny, whose...Collecting 1. Rocks, Minerals, and Gemstones 1 3 Mineral Characteristics; Gemstone Characteristics; The...Stones vs. Gemstones; Colorful Ore Minerals 2. Mineral Environments (I): The Igneous Rocks 11 The American...The Geologic Timetable; Prelude to Understanding Mineral Environments; The Classes of Rocks; Minerals Found |
 | | Book (volume) |
| ............................................v Mineral Locations by State Alabama ................................................................179 Maryland ...........................................................477 Appendix F - Classification of Mineral Deposits ........................................year I vacation in the field, collecting gem and mineral samples somewhere in the United States or Canada...enough information to be useful to most gem and mineral collectors. Generally, Minerals are capitalized |
 | | Book (volume) |
| ............................................v Mineral Locations by State Alabama ................................................................179 Maryland ...........................................................479 Appendix F - Classification of Mineral Deposits ........................................year I vacation in the field, collecting gem and mineral samples somewhere in the United States or Canada...enough information to be useful to most gem and mineral collectors. Generally, Minerals are capitalized |
