 | | 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) | | 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...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...'theFrederickCountymines, comprisingthe Liberty Mine, and the New London,or Linganore mine. DETAILED DESCRIPTIOBI OF |  | | 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 |  | | Journal (article/letter/editorial) | | -Co-Zn-Ni Deposits of the SykesvilleDistrict, Maryland Piedmont P. A. CANDELA, A. G. WYLIE, AND T. M...smelter was pects(Fig. 1). It is locatedin Carroll County,Mary- built at the Patapscominesto producecopperand...rock and the field examination of the abandoned mine sites and surroundingmetapelites,metagraywacke...Springfieldmine, the Carroll mine, the situatedbetweenthe BlueRidgeandthe CoastalPlain Mineral Hill mine, and the...The ami phibolites are composeddominantlyof plagioclase, poikiloblastichornblendewith idioblasticquartz |  | | 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 |  | | Report (volume) | | BULLETIN 1312-D A potential target area for mineral exploration is indicated by breccia veins of argentiferous...deposits, Coos County, N.H. _______________ North Woodstock deposit, Graf ton County, N.H __________________...__________________ Mineral Hill deposit, Carroll County, N.H._______________________ Kezar Falls deposit, York...York County, Maine.___-___--__.______..__. Other deposits.______-___-_-__---------_----_---_---__________...pit rim, Silver Lake mine...____-___-_____7. Geologic sketch map of Mascot mine.___.--_____-__--_-_- |  | | Journal (article/letter/editorial) | | pegmatites at QUARTZ, silica, Si02, is an essential mineral in the granite pegmatites. Massive, white, or smoky...crystal was recovered about 1905 from the Barringer Hill, Texas locality, which measured 43x28x15 inches...Rose quartz crystals have also been found at Red Hill, Maine; North Groton, New Hampshire, and from Pala...Deer Hill, Maine; near Statesville, North Carolina; at Amelia, Virginia, near Clayton, Rabun county, Georgia;...at Shaw and Esray's quarry near Chester, Chester County, Pennsylvania, and is now in the collection of |  | | Journal (article/letter/editorial) | | THE Maryland Mine Downloaded by [Australian National University] at 04:12 13 March 2015 Maryland’s...Maryland’s Last Underground Gold Mine Figure 1. according to Huntley Ingalls, this amazing sample, containing gold...was recovered from a rich ore shoot in the Maryland mine sometime between 1900 and 1910. Such a specimen...only when prospective investors would visit the mine. This much smaller, yet remarkable, piece was saved...early mine owners. The specimen measures 4 × 2 × 2 cm. Jake Slagle photo. Figure 2. The Maryland mine |  | | Report (issue) | | Chromite and Other Mineral Deposits in Serpentine Rocks Of the Piedmont Upland Maryland, Pennsylvania And...districts ______ -._-_____-_____-___._. Montgomery County, Md_-_-_---_---_-_-----------_-__--_-_-_Soldiers...Philadelphia district....._._.-_.-.--. ___________ Mineral deposits___-___--_-_-___-.-------_---_---_-----_-_-_----Geologic...State Line district__-------___..____.___._... Cedar Hill (Geiger) quarries._--_.-_-----__.____ West Chester...____________ Mine descriptions_______________________________________ Montgomery County, Md___-_______________________ |  | | 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 (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 |  | | Report (issue) | | terrane, central Appalachian Piedmont, Virginia and Maryland; Its origin and tectonic RISlOry ee ae ree ua...composite mélange-olistostrome belt in the Piedmont of Maryland and Virginia that includes olistostromes such...of the Morgan Run Formation (of debated age) and Mine Run Complex, some of which contain possible ophiolite...possible that soapstones just west of the Bronson Hill anticlinorium, discussed by Lyons and others (1982)...poorly constrained, as for the diamictites of Maryland and Virginia. Six main sets of mélanges and olistostromes |  | | 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...alkali feldspar and quartz, with subordinate plagioclase and a little biotite. It is probably to be classed |  | | Report (volume) | | may be determined by scratching it with another mineral or with a knife blade. This may mutilate tllQ StOne...Topaz Corundum Diamond The numbers preceding each mineral indicate only increasing degrees of hardness, not...placed next to diamond only because it is the mineral nearest the diamond in hardness. Because much dust...contact with one another. The specific gravity of a mineral is the ratio between its weight and the weight...of stones. Luster, the general appearance of a mineral in reflected light, is of two types: metallic and |  | | Report (volume) | | 250-12,460 ft, sec. 14, T. 45 S., R. 27 E., Lee County, Fla. Named for the nearby Able Canal. The Able...Member of the Omar Formation Pleistocene Virginia, Maryland Atlantic Coast basin Mixon, R.B., 1985, Stratigraphic...the southern Delmarva Peninsula, Virginia and Maryland: U.S. Geological Survey Professional Paper 1067-G...H-20, northwest of Wattsville, northern Accomack County, Va. Reference sections: facies E and F, sand pits...Wattsville, Persimmon Point, and Accomack, Accomack County, Va. The informal Accomack beds of Mixon and others |  | | 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 (volume) | | Geologic Features of the Pima Mining District Pima County, Arizona GEOLOGICAL SURVEY BULLETIN 1112-C ...Geologic Features of the Pima Mining District Pima County, Arizona By JOHN R. COOPER CONTRIBUTIONS TO ECONOMIC...eastern part of the Pima mining district, Pima County, Ariz___ ________________________ In pocket 2....GEOLOGIC FEATURES OF THE PIMA MINING DISTRICT, PIMA COUNTY, ARIZONA By JOHN R. COOPER ABSTRACT Bocks ranging...lead, zinc, and preciousmetal district in Pima County, Ariz., 15 to 30 miles by road southsouthwest of |  | | Book | | 3 -N APPALACHIAN MINERAL & GEM TRAILS 3 3 By June Culp Zeitner 'NS 3 v' r,. -S.’ Vv '• li ...unequalled i n hospitality. Many friends, gem and mineral clubs, and gem and m i n e n d dealers and suppliers...Pennsylvania___ _ _ _ 1 _ 2 _ 2 1 CHAPTER 4 Maryland ... 3 CHAPTER 5 Virginia 4 1 CHAPTER 6 West...was m e r e l y p a r t o f t h e waste o f t h e mine. W h a t t h e y needed was h i g h grade ore o...n g y e l l o w " c o l o r " i n y o u r pan. Maryland: M o n t g o m e r y, Frederick, H o w a r d |  | | Report (volume) | | separating and purifying hundreds of accessory mineral samples from igneous rocks. The authors are grateful...number Geographic locality Collector of the sample Mineral used for age determination Mesh size of the crystals...activity of the mineral used for age determination Total lead content of the mineral used for age determination...Lead-alpha age of the mineral Geologic age * of the rock from which the mineral was separated, based on...activity and total lead content of each accessory mineral. The age equations, repeated here for convenience |  | | Book | | 1953 THE PORTER CHEMICAL COMPANY Hagerstown, Maryland -•-0-•-0-•-0-•-0-•-0-•-0-•-0-• ◄ HOW TO USE THIS...______________________ Miaodine ____________________ _ Plagioclase Group Albite ___________ _ l.abradorite The MiCIS...Staurolitc Calamine 89 90 90 90 91 Making Your Mineral Collection Gems The Determination of Minerals and...96 96 97 97 98 98 98 99 100 100 101 INDEX OF MINERAL SPECIES A. . A~~olite P~e~; ________________________...concerns chiefly the substances known as minerals. A mineral is a substance produced by the processes of nature |  | | Report (volume) | | GEOLOGIST J. A. Holmes Chapel Hill. LETTER OF TRANSMITTAL Chapel Hill, N. C., April 1, 1905. To His... Clay County. Macon County. Jackson County. Transylvania County. Swain County. Haywood County. Buncombe...Buncombe County . Madison County. Yancey County. Mitchell County . Watauga County . Wilkes County. Ashe County...County . Alleghany County . Physiography and ecology of the peridotites. 28 28 29 32 34 35 36 38 42 46...mag¬ nesian rocks. Shooting Creek region, Clay County, North Carolina. Elf dunite. Elf amphibole-peridotite |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Surv. of Canada Ottawa George W. Robinson Seaman Mineral Museum, MTU Houghton, Michigan Correspondents Miguel...Volume Thirty-five, Number Five Articles Famous mineral localities: The Cripple Creek Mining District,...F. Larson Criteria for selecting crystallized mineral specimens for a display collection . . . . . .... . . . . . . 201 by Q. Wight Abstracts of new mineral descriptions . . . . . . . . . . . . . . . . . |  | | Report (volume) | | Gastropoda, Invertebrata, Pelecypoda, Scapho- poda. Mineral resources. See also the subheading Economic geology...Porifera, Brachiopoda, Mollusca, the common economic mineral groups, such as Copper, Gold, Silver, and other...Industrial minerals _ Mineral collecting___________ Mineral .deposits.____________ Mineral deposits, origin...origin,_____ __ Mineral descriptions__________ Mineral resources_ _________ Nomenclature- 3 ___ _ _ Oil...articles discussing origin of minerals or ores. Mineral name listing. Area; includes articles dealing with |  | | Book | | safe. Persons handling and collecting rocks and mineral specimens do so at their own risk. This book offers...when handling, identifying or collecting rock and mineral specimens; however, we cannot accept any responsibility...before entering the site or removing rock and mineral specimens, and note that these may vary from region...Minerals Form 42 Mineral Crystals 44 Mineral Properties: Physical 46 Mineral Properties: Optical...Optical 48 Mineral Gems 50 Mineral Ores 52 Collecting Rocks and Minerals DIRECTORY OF MINERALS 134 |
|
