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| Alpine Pink Fluorite from the New Gotthard Road Tunnel, Switzerland.....................................COVER: FLUORITE, 5.8 cm, from the New Gotthard Road Tunnel. Found in September 2022. Thomas Schüpbach photo...for the Discerning Collector Imperial Topaz in Quartz Pocket - Ouro Preto, Brazil Dallas, Texas and Guilin...corner of the English Lake District that is now within the borders of the Lake District National Park. The...name, the valley carries a small stream in its lower reaches. At the eastern extremity of the mine (Ordnance |
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| Litchfield County, where good crystals were taken from quartz veins in a variety of metamorphic, plutonic and...Litchfield, where a mass of white quartz on a ridge had once been mined for quartz, and large ilmenite masses...ilmenite crystals to 7 .5 cm in matrix of massive quartz from these dumps-adding that, in his judgment,...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Mi11eml Discm•t•ries, /960--20/ 5 ONTARIO Bentley Lake Road occurrence, Faraday Township, Hastings County |
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| quartzite...................................... Lower coal measures............................................................. Midas or Gold Circle district........................................ Location...mine........................................... Water Witch mine...............................................:.................-..-. 63 Good Hope district..................................................... . Richmond district............................................. Lynn district................. |
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| STATIONS ERHARD HYDRO-ELECTRIC OF M. POWER AUSTRIA WINKLER CONTENTS PAGE Abstract ...............he smallstatesisolated these small countries; Austria was cut off from Czechoslovakiancoal, and Hungaryfrom...completelack of coalin Austria necessitated an emergencyprogramof switchingfrom coal to water power. The steepslopes...862 GEOLOGYOF HYDRO-ELECTRIC POWER STATIONS, AUSTRIA 863 'Fore-Alpinelandswere usedfor the construction...countriesstopped the developmentof more plantsin Austria at that time. However, the outbreak of the SecondWorld |
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| describe a group of silicate minerals that expel water when heated and seem to boil and puff up in a borax...zeolites, feldspars, feldspathoids, scapolites, quartz minerals, and danburite. The relationship between...the other framework silicates by the presence of water molecules. The general formula for a zeolite mineral...brackets, represents the exchangeable cations plus water molecules. The variables (a, n, and x) depend on...groups of minerals with a framework structure. Quartz minerals are composed of tetrahedra with four oxygen |
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| describe a group of silicate minerals that expel water when heated and seem to boil and puff up in a borax...zeolites, feldspars, feldspathoids, scapolites, quartz minerals, and danburite. The relationship between...the other framework silicates by the presence of water molecules. The general formula for a zeolite mineral...brackets, represents the exchangeable cations plus water molecules. The variables (a, n, and x) depend on...groups of minerals with a framework structure. Quartz minerals are composed of tetrahedra with four oxygen |
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| Dorado Fresno Glenn Humboldt Inyo Kern Kings Lake Los Angeles Marin Mariposa Mendocino Merced Modoc...QUICKSILVER ORES The Author's Experiments On tables, with water By flotation, with oils By solution, with an alkaline...the New Idria mine Hot salino-sulphur water flowing from tunnel of Elgin mine Furnace at New Mercy (Pacific)...Geological map of Mayacmas District Geological map of portions of Napa, Sonoma, Lake, and Yolo counties Geological...Geological map of Sulphur Creek District Plan and elevation of Abbott mine Geological map and section of |
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| stock-shapedintrusion consisting of aplitic granite and quartz-feldspar-porphyry. $ericitic alteration is the...alkali-granite composition:black quartz-feldspar-porphyry,gray quartz-feldspar-pordenite mineralization...Drammen area (Fig. 1). Ihlen and Vokes (1978 gray quartz-feldspar-porphyryis sharp. Transitional a and b)...this concept,it was suggested(Sch•nwandt, gray quartz-feldspar-porphyries.The sharpcontact 1975) that...to the betweenthe aplitic granite and the gray quartz-feldporphyry type could be expectedin the subvolcanic |
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| and Mineral Resources of the Pico de Itabirito District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL...and Mineral Resources of the Pico de Itabirito District Minas Gerais, Brazil By ROBERTS M. WALLACE GEOLOGY...of Ba$ao granites to Minas SeriesDike rocks and quartz veins____________________ Granodiorite dikes and..._______________ Amphibolitic rocks________________________ Quartz veins.______________________________ Surficial...structural and geologic map of the Pico de Itabirito district, Minas Gerais, Brazil. 6. Geologic map and schematic |
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| minerals associated with ironstones, such as siderite, quartz, millerite, galena, sphalerite, siegenite, ankerite...excursions with vehicl s always involved gallons of water and at least 3 spare tyres. Diamondiferous fossil...recognised the tell tale signs of black to greasy brown quartz, in which the crystal structure is destroyed by...his passengers! Regarding the fauna and flora, water worn deep gullies have led to isolated plateaux...phases in a rock sample (including the type of quartz), sphalerite hitherto unsuspected in a galena-barite |
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| subway lines, and the underground railroad, sewer, water, and steam tunnels that crisscross the city. To...glassy yellow-green chrysoberyl found frozen in quartz matrix by Wallace Goold Levison certainly ranks...that included minerals from Corlaer’s Hook on the lower east side of Manhattan. This was a large alluvial...corresponding to the old New York and Harlem Railroad tunnel under upper Park Avenue. Table 1. Abbreviations...SIM = Staten Island Museum (of the SIIAS) TBM = Tunnel-Boring Machine Volume 84, May/June 2009 4. 204-243_RM |
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| OF WASHOE NEVADA NOTES ON THE GEOLOGY OF THE DISTRICT ARNOLD HAGUE AND JOSEPH P. IDDINGS WASHINGTON........................................... Sutro tunnel section........ .....*...........................horublende-andesite ............................... Quartz-porphyry, dacite and rhyolito ...................necessary con ditions, and none surpass the Washoe district in furnishing the requisites for a proper investigation...structure, it was readily seen that the Washoe district was the only place offering sufficient material |
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| 48 (top). Pyrite and calcite on stilbite from Water Tunnel No. 3, 700-foot level, Station 167, under Woodside... SIM SM471. Figure 47 (above). Orthoclase with quartz and adularia from Lafayette Avenue, Brooklyn. 6...the excavated material turned out to be a subway tunnel, between 28th and 30th streets at the Avenue of...reddishbrown, measures 55 mm across, and is perched on a quartz matrix. The backside is incomplete, but the front...at 01:16 05 June 2016 Figure 50. Pyrite from Water Tunnel No. 3, Manhattan. 18 × 18 × 42 mm, NYSM 22156B |
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| D.Sc., PH.D. ... 72 VII.-The Garrv-Ericht Water Tunnel, by T. ROBERTSON, B.Sc., · PH.D. ... 78 .VIII...l\:Iorar 31 III.-Geological Map of the !l-1orar District, Western Invernessshire 44 V PLATE IV.-Devonian...Garry-Ericht tunnel 3.-Vector diagrams of directions of Iineation and dip in the GarryEricht tunnel 79 80...Hodbarrow ore (South Cumberland) gave somewhat lower values. By way of comparison it ma.y be recalled...X 10-5 , the height of the calculated curves is lower than .that of the observed profiles, in order to |
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| Company 14 23 Silver Mountain District Silver King District Mineral Water Grover's Hot Springs 9 10...description 29 29 Hydrology 29 29 34 Climate and water supply List of watering places in Inyo County Topography...travel and routes Hints for travelers in machines Water, gas and oil Outfit Provisions Fuel Roads and railroads...Pegmatite dikes Quartz veins Deposits in limestone and other Paleozoic or Mesozoic sediments Quartz veins —...Replacement deposits Contact veins Tertiary deposits Quartz veins Gold and copper ores along contacts Sedimentary |
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| Geologist C. A. Logan, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...Francisco - District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averill, District Mining...Francisco San Francisco TABLE OF CONTENTS REPORTS OF DISTRICT MINING ENGINEERS Page 1 Sacramento Field Division...mining activities of the State, prepared by the district mining engineers are given. Special articles dealing...possibilities, and developments). REPORTS OF DISTRICT MINING ENGINEERS In 1919-1920 the Mining Bureau |
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| late-stage hydrothermal mineral. It is found in lake-bed sediments where it forms as an alteration product...and West Paterson (including the famous Upper and Lower New Street quarries where crystals to 7 cm have...found at the Powder Mill dump, Baltimore City water tunnel, Baltimore, Maryland. Good crystals of analcime...lodes. Associated minerals include calcite, copper, quartz, apophyllite, and adularia. Localities from which...which is on the Sharon claims in the Silver Peak district, Esmeralda County, where it forms transparent |
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| The Dividend group of prospects in the Windypah district. .. _.... _._................ 117 117 Genetic...OF THE THEORY OF METALLIFEROUS VEINS OF MAGMATIC QUARTZ..... 129 129 Crystallization of granite .........Magmatic origin of certain pegmatites and certain quartz veins.... . . . . . . . . . . . . . . . . . . ...than gold in dikes of granitic pegmatite and of quartz ...... _.. . . . 138 Iron in pegmatite ..................... _ 139 Presence of gold in magmatic quartz veins which are dependent upon granitic intrusions |
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| MINERALS. Bulletin number is 973-E. The title is "Quartz crystal deposits of western Arkansas," by A. E... Washington 25, D. C. It deals mostly with the quartz crystal deposits of western Arkansas throughout...fine specimens of calcite, marcasite and sometimes quartz. I will be unable to find out about this locality...GEORGIA—"From time to time, small clear doubly-terminated quartz crystals are brought into the State Geological...pit is 12' by 6' and is lined with calcite and quartz xls. It was "On Aug. 3, 1952, Thomas C. Southard |
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| semi-pelkic schists penetrated by pegmatites and by quartz-porphyry and felsite sills. Deep and very extensive...Kingussie. From the loch a canal and pipes convey the water to Loch Ericht, the main reservoir, near Dalwhinnie...these visits. The more easterly, or Bhran-Seilich, tunnel has an inlet on the Allt Bhran at a height of 1...an t-Seilich northwards by about -J mile. This tunnel was driven entirely from the south-west end. The...The more westerly, or Seilich-Cuaich tunnel, starts from the west end of the dam at 1,388 feet and runs |
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| SURFACE-WATER RECORDS PART 9.-COLORADO RIVER BASIN TO SEPTEMBER 30, 1950 Prepared by Tucson District UNITED...Survey, Washington 25,. D. C. INDEX OF SURFACE-WATER RECORDS PART 9.--COLORADO RIVER BASIN TO SEPI'EMBER...near Grand Lake, Colo •••••••••••••••••••••••••••• Shadow Mountain Reservoir near Grand Lake, Colo •••••••...••••••• Alva B. Adams tunnel at East Portal, near Estes Park, Colo .......................................Ar-iz ••••••••••••••••••••••••••••••••••••• 137,800 Lake Mead at Hoover (Boulder) Dam, Ariz.-Nev •••••••••• |
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| DECEMBER, 1953 No. 8 IRON DEPOSITS OF THE CONGONHAS DISTRICT, MINAS GERAIS, PHILIP W. BRAZIL2 GUILD. ...regionalmetamorphism recrystallizedthe chert and iron oxide to quartz, specularhematite,and minor amountsof magnetite...solutions followed fault zones. Heated meteoric water may have been responsiblefor the replacement,as...accumulationof nearly pure iron oxide in localizedareaswhere quartz and other impuritieswere not being deposited. Leith...MINAS GERAIS, BRAZIL. 641 tween theseores and the Lake Superior type, and Harder (21) refuted the theory |
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| 370 AFAMOUS FORGOTTEN QUARTZ CRYSTAL LOCALilY, CRYSTAL HILL NEAR DELAWARE WATER GAP, PA. By 0. Ivan Lee...unimportant. I. R. Vawdry, a well-known figure of the district around St. George, came across a seam of this...whose stone work may be seen in the bridge and tunnel constructions of Zion National Park, dressed some...show places, like the Albert Meyer mansion in Salt Lake City. At the same time, however, a single slab,...risk of being overpowered by the scenery of that district. N ear, far, and at middle distance, he is conf |
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| three day field trip to Herkimer, N.Y. to collect quartz crystals, and a two day trip to Flint Ridge to...Nineteen members of the Rock and Mineral Club of Lower Bucks County, Fairless Hills, dig for pyrite and...Club, went to the Allensville area to hunt for quartz crystals and "Herkimers." NEW JERSEY The 100th...Alabama Mineral and Lapidary Society, Birmingham. The Lake Martin Rock and Gem Club, Alexander City, went to...for quartz and feldspar; Shaft #10, Hardwicke, Mass; a dump from the dig ging of a water tunnel; Gold |
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| GEOLOGICAL SURVEY CIRCULAR 389 INDEX OF SURFACE-WATER RECORDS TO SEPTEMBER 30,1955 PART 9. COLORADO RIVER...GEOLOGICAL SURVEY CIRCULAR 389 INDEX OF SURFACE-WATER RECORDS TO SEPTEMBER 30,1955 PART 9. COLORADO RIVER...Survey, Washington 25, D. C. INDEX OF SURFACE-WATER RECORDS TO SEPTEMBER 30,1955 PART 9. COLORADO RIVER...adopted for use in the 1951 series o water-supply papers on surface-water supply of the United States. Starting...periods of record not contained ii water-supply papers on surface-water supply of the United States are |
Water tunnel, Lower Rotgülden lake, Rotgülden, Muhr, Tamsweg District, Salzburg, Austria