 | | Journal (article/letter/editorial) | | Pegmatite Mineral Localities in Oxford County, Maine Oxford County The four pegmatites described in...peg matites in the Maine pegmatite belt. The famous pegmatite quarries of western Maine—Mt. Mica, Mt. Apatite...specimens. The General Electric Pollucite Quarries Buckfield The General Electric pollucite quarries are "very...Realty of Norway, Maine, and was under lease to T . C . Mining Company of West Paris, Maine. There has been... intermediate zone 5-8 feet thick, and a white quartz core up to 1 foot thick (Barton and Goldsmith, |  | | Journal (issue) | | stands 4 cm tall and sits on a small matrix of drusy quartz crystals. ExcaliburMineralCorp.specimenand image...page 2) A Conglomerate Silver Cache From Keweenaw County, Michigan Tom Rosemeyer datolite@charter.net Even...One exception is at the Central mine in Keweenaw County where it widens to 24-36 inches and was mineralized...variety of wellrounded felsite, granophyre, and quartz-feldspar porphyry pebbles. cobbles, and boulders...oxyplumboromeiteat UCLA. Only $30 - postpaid in the USA A vailab/e exclusively from: Excalibur Mineral Corporation |  | Webber, Karen L., Simmons, William B., Falster, Alexander U., Hanson, Sarah L. (2019) Anatectic pegmatites of the Oxford County pegmatite field, Maine, USA. The Canadian Mineralogist, 57 (5) 811-815 doi:10.3749/canmin.ab00028 | Journal (article/letter/editorial) | | ANATECTIC PEGMATITES OF THE OXFORD COUNTY PEGMATITE FIELD, MAINE, USA KAREN L. WEBBER§, WILLIAM B. SIMMONS...FALSTER 2 Maine Mineral & Gem Museum, MP Research Group, 99 Main Street, Bethel, Maine 04217, USA SARAH...Michigan 49221, USA Keywords: rare-element-pegmatite, anatexis, Oxford County pegmatite field, Maine. INTRODUCTION...of the Oxford County Pegmatite Field (OCPF) in the Central Maine Belt (CMB) of western Maine, are renowned...1992) or pegmatitic leucogranites (e.g., Streaked Mountain, Wise & Brown, 2010) we have long believed |  | | Report (volume) | | PEGMATITES AND ASSOCIATED ROCKS OF MAINE INCLUDING FELDSPAR, QUARTZ, MICA, AND GEM DEPOSITS BY EDSON................................... Origin of the Maine pegmatites........................................Larsen............................. Application to Maine pegmatites............................... Eutectics.............................. 1.... Androscoggin County................................................................................................ Maine Feldspar Company quarry and mill............... |  | | Book (volume) | | Mineralogy by Vandall T. King and Eugene E. Foord Maine Geological Survey DEPARTMENT OF CONSERVATION Walter...Resources Information, Maine Geological Survey Walter A. Anderson, State Geologist Maine Geological Survey...DEPARTMENT OF CONSERVATION 1994 Copyright ©1994 by the Maine Geological Survey, Department of Conservation. All...photograph: Fluorapatite, Pulsifer quarry, Auburn, Maine (2.2 cm specimen), Harvard Mineralogical Museum...Wendell E. Wilson, ©1985. The laws and policies of Maine and the United States prohibit discrimination in |  | | Report (issue) | | QUARTZ AND FELDSPAR. FELDSPAR AND QUARTZ DEPOSITS OF MAINE, By EDSON S. BASTIN. INTRODUCTION. The commercially...commercially important feldspar and quartz deposits, of Maine all belong to a single type of rocks known...feldspar, quartz, and mica, usually with subordinate amounts of other minerals. The pegmatites of Maine were... Cumberland, Androscoggin, and Oxford counties, in southwestern Maine, though occurring to some extent...exposures occur in many open pits, from which feldspar, quartz, mica, or gem minerals have been mined, and in |  | | Book (volume) | | 0 n101ercai o of Maine j f·~ ....__ :,,. . - .._"' ..;. .. ~ L-- -~ \. • .J_..::.; I Volume...History, Gems, and Geology edited by Vandall T. King Maine Geological Survey DEPARTMENT OF CONSERVATION Robert...Robert G. Marvinney, State Geologist of Maine Volume 2: Mining History, Gems, and Geology Edited by...Resources Information, Maine Geologi,cal Survey Robert G Marvinney, State Geologist Maine Geological Survey...DEPARTMENT OF CONSERVATION 2000 Copyright ©2000 by the Maine Geological Survey, Department of Conservation. All |  | | Journal (article/letter/editorial) | | the Sebago granite–pegmatite system, southern Maine, USA Michael A. Wise*, Cathleen D. Brown Department...two-mica granite situated in the Oxford pegmatite field, southwestern Maine. Surrounding the pluton is an...chemistry, petrology, geochemistry, Sebago, southern Maine Received: 1 October 2009; accepted: 30 March 2010;...Introduction The granitic pegmatites of southern Maine represent one of several major pegmatite regions...Unfortunately, very little geochemical data exist for the Maine pegmatites despite their popularity among mineral |  | | Journal (article/letter/editorial) | | MA Y-JUNE, ORIGIN 1910 OF THE PEGMATITES OF MAINE' EDSON S. BASTIN U.S. Geological Survey During...study in some detail the pegmatite deposits of Maine, and at intervals during succeeding years have been...this work. The pegmatite deposits in the state of Maine all belong to the type commonly known as granite... the dominant ORIGIN OF THE PEGMATITES OF MAINE 299 pegmatite minerals are those characteristic...characteristic also of the normal granites; namely, quartz, orthoclase and microcline, albite or oligoclase, muscovite |  | Bradley, Dwight, Shea, Erin, Buchwaldt, Robert, Bowring, Sam, Benowitz, Jeff, O'Sullivan, Paul, McCauley, Andrew (2016) Geochronology and Tectonic Context of Lithium-Cesium-Tantalum Pegmatites In the Appalachians. The Canadian Mineralogist, 54 (4) 945-969 doi:10.3749/canmin.1600035 | Journal (article/letter/editorial) | | Hampshire, at ca. 326– 294 Ma; and (4) Mount Mica, Maine, at ca. 264–260 Ma. The NYF pegmatites in the Appalachians...Appalachians must be of at least three ages: Topsham, Maine, dated at ca. 273 Ma (U-Pb monazite) by Tomascak...Morefield, Virginia, at ca. 253 Ma; and Hurricane Mountain, New Hampshire, which cross-cutting relations...that delimit the Connecticut Valley-Gaspe, Central Maine, and Merrimack basins, which were deformed and metamorphosed...Bronson Hill anticlinorium in New Hampshire and Maine (Moench & Aleinikoff 2003, Dorais et al. 2008) and |  | | Journal (issue) | | Alves Mineralogy of the Bennett pegmatite, Oxford County, Maine ..........................................located 12 km north, on the other side of the mountain, from the famous Muzo mine (see the article on.../# 6 C alifornia Issue B enitoite, G old, L .A . County M useum , H im alaya m ine $7 Circulation Manager...search of mineral specimens, primarily tourmalinated quartz crystals and “ cleavelandite” albite groups. By...length and di] Figure 3. A large tourmalinated quartz crys tal on the dumps, 1981. Cassedanne photo |  | | Journal (article/letter/editorial) | | C A Q U A R R Y , which is located near Paris, Maine, has been in operation intermittently since its...elbaite. A small, doubly terminated crystal of quartz, about 3 inches long, is attached to the large...tourmaline crystal ever found at Mount Mica, Paris, Maine. N O V E M B E R / D E C E M B E R 1987 447 The...interest in the minerals of Maine. After stating that Mount Mica (in Paris, Maine) is "the most remarkable...spurs of a more considerable elevation called Streaked Mountain, from the rugged and denuded appearance of |  | | Journal (issue) | | mineral specimens of the trip, quartz geodes Lined with small quartz crystals with some of the fossils...themselves with hollow interiors lined with small quartz crystals. Good calcite crystals were also found...Iville, Kansas, to Den- west side of North Table Mountain sp ver, Colorado, a distance of 410 miles, a road...little of geological interest other the top of the mountain. When we w than the scenery. Stayed in a tourist...of Loo the interesting mtneral-ltned cav1t1es. Mountain at Golden to see Buffalo Bilrs However we obtained |  | | Journal (issue) | | chest worth its weight in gold, of Balliol College, Oxford. Thompson he settled in Alder Gulch, Montana "What...blooms were made from carnelian, chalcedony, rose quartz and amethyst with accents of lapis lazuli, amber...childhood efforts, was an attractive but ordinary quartz geode from Amethyst Ridge, Yellowstone National...National Park (AMNH 37445).16 The myriad varieties of quartz are strongly represented in the collec tion. There...woods, jaspers, smoky quartz, rock crystal, and amethyst. Thompson's finest quartz specimen undoubtedly |  | | Report (issue) | | _______________________ _ Geology of the pegmatite districts of Maine __ :. . _____ _ Metamorphic rocks _________________________...__________________ _ Maine ________________________________________ _ Androscoggin County ______________________...Cumberland County _______________________ _ LaChance mines _______________________ _ Oxford County ______...Black Mountain area ___________________ _ Black Mountain ___________________ _ South Twin Mountain ______________...______________ _ Whitecap Mountain ________________ _ Howe and Farmers Hills----~-------Black Mountain quarries __ |  | | Book | | commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...cities, and many of today’s prosperous western county seats began as mining-boom camps. trating sand...Whether you such as those listed alphabetically by county, township, and range in Part II of this book. Where...in his work, that he may know first of all what mountain or hill, what valley or plain, can be prospected...examples of all rock types. Most so-called rocks are mountain-building materials; they are massive, colored |  | | Book (edition) | | molybdie acid. Monoclinate, 33. Monometric, 32. Mountain limestone. containing A limestone of the lower...55. To gradually pass Quartzose. Containing quartz as a principal ingredient. Radiated, 53. Rake-vein...Siliceous. Consisting of, or con- taining silex, or quartz. Silky, 56. A Silurian. term applied fossiliferous...distinguished from others ticles {feldspar) (quartz) that have a glassy appearance. It is a popular...no such nourishing fluid. is as perfect as the mountain mass. only by additions to the surface from The |  | | Book (edition) | | acid. Monoclinate, 33. Monometric, 32. salt Mountain limestone. containing A limestone of the lower...pure ore. Ore, 202. ; Oxyd, 73. XI Containing quartz aa Quartzose. a principal ingredient. Radiated...Consisting Siliceous. of, or con- taining silex, or quartz. Silky, 56. A Silurian. term applied to the...(feldspar) will be easily distinguished from others (quartz) that have a glassy appearance. It is a popular...no such nourishing fluid. is as perfect as the mountain mass. only by additions to the surface from some |  | | Book (edition) | | ] a lye, by allowing water earthy or alkaline Mountain limestone. limestone stand upon to material, and...pure ore. Ore, 202. ; Oxyd, 73. XI Containing quartz Quartzose. a principal ingredient. Radiated, 53...Silicate, 74. Consisting of, taining silex, or quartz. Silky, 56. Siliceous. A Silurian. fossiliferous...(feldspar) will be easily distinguished from others (quartz) that have a glassy appearance. It is a popular...no such nourishing fluid. is as perfect as the mountain mass. only by additions to the surface from some |  | | Book (edition) | | acid. Monoclinate, 33. Monometric, 32. salt Mountain limestone. containing A limestone of the lower...Oxydating flame, 68. XI Quartzose. Containing quartz as a principal ingredient. Radiated, 53. Rake-vein...Siliceous. Consisting of, or con- taining silex, or quartz. Silky, 56. A term applied to the fossiliferous...(feldspar) will be easily distinguished from others (quartz) that have a glassy appearance. It is a popular...no such nourishing fluid. is as perfect as the mountain mass. only by additions to the surface from The |  | | Book (edition) | | molybdic acid. Monoclinate, 33. Monometric, 32. Mountain limestone. A limestone of the lower part of the...oxygen. Oxydating flame, 68. Q.uartzose. Containing quartz as a principal ingredient. Radiated, 53. Rake-vein...Siliceous. Consisting of, or con• taining silex, or quartz. Silky, 56. Silurian. A term applied to the fossiliferous...(feldspar) will be easily distinguished from others ( quartz) that have a glassy appearance. It is a popular...fluid. The smallest particle is as perfect as the mountain mass. They increase in size only by additions |  | | Book (edition) | | part of the coal secalled also carboniferous Mountain limestone. ries ; limestone. Muffle, 317. Nacreous...Capable of combining with oxygen. Xt Containing quartz as Quartzose. a principal ingredient. . Oxydating...Silicate, 74. Consisting of, or containing silex, or quartz. Siliceous. Chequered. quered.) Silky, 56....(feldspar) will be easily distinguished from others (quartz) that have a glassy appearance. Yet the absence...no such nourishing fluid. is as perfect as the mountain mass. only by additions to the surface from some |  | | Book (edition) | | SlX.K’A Ill, 1 . SiLDLVTLS. SILICA. TAGB Quartz 2 dd Opal 23 b * 2 Ceil oral . SILICATES...a quartzoid^ because it occurs Two planes of in quartz. (3) Twelve-sided double pyramids. such a i>yramid...rhombohedrons. They are combined in figs. 20, 21, forms of quartz, Hhombohedrons vary greatly in the length of the...hemihedrism and tetartohedrism are common in crystals of quartz, and when existing, the crystals are said to be...systems. Some examples are given under and there — quartz. Some rhombohedral species, as dolomite, have the |  | | Book (edition) | | SILICA III. l. AND SILICATES. SILICA. 253 Quartz Opal 259 2. SILICATES. General Remarks.- 262...sometimes called a quartzoid, because it occurs in quartz. (3) Twelve-sided double pyramids. Two planes of...rhombohedrons. They are combined in Figs. 20, 21, forms of quartz. Ehombohedrons vary greatly in the length of the...hemihedrism and common in crystals of tetarto- quartz, and when existing, the crystals are said to... CRYSTALLOGRAPHY. 56 Some examples are given under quartz. Some systems. rhombohedral species, as dolomite |  | | Book (edition) | | point to a yard or more in diameA single crystal of quartz, now at Milan, is three and a quarter feet long...of quartz near the Tiefen Glacier, in Switzerland, discovered in has afforded 1867, smoky quartz crystals...the term crystal was applied only to crystals of quartz (f. 1), which the ancient philosophers believed...in the annexed figure (f. 155) of a crystal of quartz, in which there are only three planes, 2-2 at each...a top view of a crystal), and the prism *-2 in quartz. Both these forms properly belong to the Rhomboliedral |
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