 | | Journal (article/letter/editorial) | | Consequently, most collectors are familiar with prehnite, typically as pale green botryoidal or reniform...Virginia. Recently, however, extraordinarily fine prehnite specimens have appeared on the collector market...for its most famous locality, Tsumeb. One such prehnite specimen has been nominated for this issue’s Connoisseur’s...Connoisseur’s Choice (see fig.). Prehnite is best known in shades of green that vary from pale to very...it exhibits a vitreous-to-weak pearly luster. Prehnite has cleavages on [ 001 ) and { 110) that are good |  | | Journal (article/letter/editorial) | | MINERALS in GEORGIA Black rutile crystal in quartz-kyanite matrix, Graves Mountain, Lincoln County, Georgia...Georgia. VERNON J. HURST University of Georgia Athens, Georgia 30602 JOHN W. SHRUM INTRODUCTION With the...the Recent is represented by rocks exposed in Georgia. These rocks have been sub jected to an extremely...at the surface and are the probable source of Georgia diamonds. Inter mediate temperatures and pressures...mica mine in Fannin University of Georgia Athens, Georgia 30602 County. This occurrence was brought to |  | | Journal (article/letter/editorial) | | GEORGIA Downloaded by [University of Calgary] at 09:55 07 August 2017 MINERAL LOCALITY INDEX JENNINGS...JENNINGS B. GORDON, JR. P . O . Box 6214 Rome, Georgia 30162 Although perhaps best known for its gold, rutUe...rutUe, and staurolite (the state mineral), Georgia has, in fact, almost two hundred mineral species. ...have been reported and verified from the state of Georgia. The index has been compiled from the literature...be either a report on the economic geology of Georgia or a field guide for lapidaries, it excludes commercial |  | | Journal (article/letter/editorial) | | Alabama P.O. Box 0 Tuscaloosa, Alabama 35486 85° • County Seat ALABAMA'S MINERAL INDUSTRY began in 1818...iron furnace was built near Russellville, Franklin County, utilizing local brown iron-ore (goethite) deposits...Tennessee River Valley area near Huntsville, Madison County, the first such mineralogical description in the...1831 along tributaries of the Coosa River (Chilton County). Utilization of mineral resources in Alabama has...iron ore, clay, marble, bauxite, and Figure 1. County map of Alabama. Courtesy U.S. Geological Survey |  | | Journal (article/letter/editorial) | | brown limonite. Wickenburg is in N / W Maricopa County in western Arizona. xline—crystalline tain a... The Dallas Gem Mine is in southern San Benito County in western California. COLORADO — "Would you please...surface shows the interior cently found in San Benito County, here to be an attractive moss agate of pleasing...term "astonishing" is not an exaggeraSan Miguel County is in southwestern tion ! W e were lucky in being...localized pockets in trap rock with copper, datolite, prehnite, calcite, stilbite and, I'm told, minute xls of |  | | Journal (article/letter/editorial) | | minerals found in Ver mont slate. Figure 2. Slate quarry, Poultney; photo by Roger Bacon. The granite industry...decorator tiles. The Belvidere Mountain quarry, Low ell (Orleans County) is the most signifi cant locality...producers. The nearby hamlet of Eden Mills (Lamoille County) is the commonly given but incorrect name for the...the locality; it is near er to the quarry than the village of Lowell and is the last set tlement seen...locality from the south. The Belvidere Mountain quarry has produced worldclass crystals of grossular (the |  | | Journal (issue) | | since it will be held at the giant Los Angeles County Fairgrounds in Pomona, let’s just call it the “Pomona...section with serendibite near Johnsburg, Warren County, New York (Schaller and Hildebrand, 1955; Grew...March-April, 1995 A M in e r a l in E x h ib it io n Athens Thomas Moore 15 Lakeview Drive Niantic, Connecticut...Figure 1. The National Museum of Archeology in Athens, site of the exhibition. Say that it is summer...Culture,” in the National Archaeological Museum in Athens. While you’re at it you make a beautiful 71-page |  | | Journal (issue) | | University of South Carolina Frank Mayo Atlanta, Georgia Arthur J. Ehlmann Texas Christian University ...California, Berkeley A. A. Giardini University of Georgia William Pinch Rochester, New York Bruce K. Goodwin... ~ COVER STORY: BIGGS JASPER from Jack Beer's Quarry in Biggs Junction, Oregon. This picture jasper...Prairie Creek j ust 10uth of Murfree• boro, Pike County, Arkansas. The near-oval shaped area is an enclosed...GIARDINI Department of Geology University of Georgia Athens, Georgia and Introduction Most people know diamonds |  | | Journal (issue) | | mineral from the Clear Creek claim, San Benito County, California ............269 by A. C. Roberts, M...howieite, and zussmanite at the Laytonville quarry in Mendocino County, California. He brought the minerals...area to be responsible for (as, for example, a county or state museum), but there would be no particular...chief chef for a hospital (I believe in Sonoma County), was an expert on rare conifers of the California...made up of brecciated dike material cemented with prehnite and apophyllite. The 255 Figure 1. Map of southern |  | | Journal (article/letter/editorial) | | Ames Bixeman and Olin Lewis of the Imperial Polk County Gem and Mineral Society, Lake Wales, presented...visible length of petrified wood." The Frederick County Rock and Mineral Club, Frederick, are continuing...Mineral Society of Montgomery County, Rockville, visited the Medford quarry near Westminster for cutting...Mineral Club. His "bragging rock" came from the Pugh Quarry, Custar, Ohio—blue-over-brown phantom fluorite...six inch trim saw with its own light. The Wayne County Gem and Mineral Club, Marion, viewed the movie |  | | Book | | knowledge and enjoyment of this great owners, mine and quarry operators and science by collecting. Thanks too...standard prospector's pick. If the hunt is in a quarry for fossils which must be worked out of thick limestone...through Itasca and St. Louis Counties into Lake County. Hibbing is about the center of this historic area...replaced by dark hematite. Near Calumet in Itasca County abundant mollusks, arthropods, and sharks teeth...Iron Range is mostly in Crow Wing County, extending into Aitkin County. In 1936, near the town of Crosby | | | Journal (issue) | | J-/11rlb11t, Jr. & C. A. Frn11cis A mineral exhibition in Athens by T. Moore 95 A new occurrence of mrazekite... ince it will be held at the giant Los Angeles County Fairgrounds in Pomona, let ·s just call it the...section with serendibite near Johnsburg, Warren County, New York (Schaller and Hildebrand, 1 955; Grew... March-�pril. 1995 A MINERAL EXHI B ITION IN ATHENS Thomas Moore 1 5 Lakeview Drive Niantic, Connecticut...Figure 1. Th e Nat ional Museum of Archeology in Athens, site of the exh ibition . Say that it is summer |  | | Journal (article/letter/editorial) | | of the Waits River Formation, north-east Vermont, USA A. LCger & J. M. Ferry, Department of Earth and Planetary...Johns Hopkins University, Baltimore, M D 21218, USA P-T-X conditions of calc-silicate formation: evidence...and phase equilibria; Llano Uplift, central Texas, USA C. M. R. Letargo & W. M. Lamb, Department of Geology...Texas A B M University, College Station, T X 77843, USA The P-T-d development at the basementcover boundary...14456, USA J. M. McLelland, Department of Geology, Colgate University, Hamilton, N Y 13346, USA Variable |  | | Journal (issue) | | appear appear in sapphires from Yogo Gulch (Montana, USA) and in corundums corundums from metamorphic metamorphic...T. Cold Coldham, Sapphex Boulder, Co., Co., VSA USA analytical ham, Sapphex A.J., 1986. 1986. Polybaric...lava flow, Nye County, Nevada, USA John R. Führbach, B.Sc., FGA, GG Amarillo, Texas, USA ABSTRACT: An extinct...occurs near Black Rock Summit in east central Nevada, USA. The peridot was studied to determine chemical, optical...as Kilbourne Hole (Volcano), Dona Ana County, New Mexico, USA some 1126 km distant. Several identified |  | Pomonis, P., Tsikouras, B., Karipi, S., Hatzipanagiotou, K. (2008) RODINGITE FORMATION IN ULTRAMAFIC ROCKS FROM THE KOZIAKAS OPHIOLITE, WESTERN THESSALY, GREECE: CONDITIONS OF METASOMATIC ALTERATION, GEOCHEMICAL EXCHANGES AND T-X(CO2) EVOLUTIONARY PATH. The Canadian Mineralogist, 46 (3) 569-581 doi:10.3749/canmin.46.3.569 | Journal (article/letter/editorial) | | Geoenvironment, University of Athens, Panepistimioupolis, GR–15784, Athens, Greece Basilios TSIKOURAS...Koziakas mountain range, located 500 km northwest of Athens in western Thessaly, Greece. The Koziakas ophiolitic...chlorite, clinozoisite or epidote, calcite and prehnite. Accessory phases include titanite and magnetite...crystals. Chlorite, tremolite and clinozoisite with prehnite are interpreted as alteration products of the...plagioclase, respectively. Idioblastic clinozoisite and prehnite grow pseudomorphically at the expense of plagioclase |  | | Journal (article/letter/editorial) | | Pacific R. R. "One of the largest producers in the county, it has yielded over 2 million dollars worth of...years ago, at the small abandoned Pelton feldspar quarry near Portland, Middlesex Co., Conn. The xls were...did not know, it is located near Clinton, Kent County, Delaware, about 40 miles south of Wilmington and...—all very nice specimens. GEORGIA—Chromite has been found in Towns County at Hog Creek near Hiawassee...Idaho. ILLINOIS — In southern Illinois, in Pope County, is the little town of Rock and we have often wondered |  | | Report (issue) | | COVER PHOTO : Gold nugget from Dukes Creek, White County, weight 5 oz., 12 dwt., approx. 2x. BACK COVER...approx. 1.5x. Lower left - Goethite from Pulaski County, approx. lx. Right - Magnetite crystal face showing... MINERALS OF GEORGIA: THEIR PROPERTIES AND OCCURRENCES by Robert B. Cook STATE OF GEORGIA DEPARTMENT OF........................................... -153 Prehnite .......................................................................................... 170 County Index ........................................ |  | | Journal (article/letter/editorial) | | botryoidal material. In Europe at Larium, Greece, near Athens, smithsonite occurred in a wide range of colors—gray>...babingtonite on prehnite with calcite. There are just two xls on the 2x2 inch matrix of prehnite but the xls...larger type that were found years ago at the Lane Quarry, Westfield, Mass. This is just a sample of what...Middletown, N. Y. 821 A SPARKLING AFFAIR The Rockland County Mineral and Gem Society held a picnic and rock-swap |  | | Journal (article/letter/editorial) | | b a b National and Kapodistrian University of Athens, Faculty of Geology and Geoenvironment, Department...and Petrology, Panepistimioupoli Zografou, 15784 Athens, Greece University of Vienna, Department of Lithospheric...mainly characterized by the frequent occurrence of prehnite, while Type 2 rodingites include mostly garnets...the CFMASH system, reveals that in Type 1 rocks prehnite replaced most of the initial garnet, while Type...the Oligocene–Miocene regional greenschist to prehnite-pumpellyite facies metamorphism (Koutsovitis, |  | | Journal (article/letter/editorial) | | National and Kapodistrian University of Athens, Panepistimioupolis, Athens 15784, Greece e-mail: petroskoutsovitis@yahoo...300EDX microanalysis system, at the University of Athens, Department of Mineralogy and Petrology. Operating...spinel composition. Secondary minerals include prehnite, Al-rich pumpellyite (Passaglia and Gottardi 1973)...chlorite (pycnochlores and brunsvigites, Hey 1954), prehnite and rare sericites and alkali feldspars (Tables...assemblage of gabbros consists of:albite pumpellyite prehnite sericite actinolite chlorite alkali feldspars |  | | Journal (article/letter/editorial) | | the vesiclesthe pumpeilyite has been followed b1.prehnite, analcime,and chlorite, in that order of deposition...Department oJ Geology, Lrniaersity of Georgia, Athens, Georgia 30601. In a recent article by Einaudi |  | | Journal (article/letter/editorial) | | the Josephine Mine near Volcanoville, Eldorado County, California. What your correspondent writes is... he mentions a few minerals found in Middlesex County, Conn. "Sillimanite evidently exsists, at least...discovered an occurrence of it at the Gillette quarry (Haddam Neck) last week. Incidently, while very... "The peculiar white mineral from the Strickland quarry may be wollastonite, of an odd type. I am still...beautiful capillary tourmaline, at the Strickland quarry, two weeks ago, as I recall. No. 3—Nice specimen |  | | Report (chapter) | | Phlog, -- phlogopite; Pie, = piemontite; Pre, = prehnite; Ser, = sericite; Spess, = spessartine; Stil,...metabasites: serpentine-actinolite-talcMg-riebeckite-prehnite. On the Pelion peninsula the following assemblages...it lies between 420 and 480~ The occurrence of prehnite in metabasites (200-400~ Winkler 1976) and of...of Drs J. Bornovas and G. Katsikatsos (I.G.M.E., Athens). Some of the minerals were determined by Dr L... G. Marinos, I. Mariolakos, and D. Matarangas (Athens), R. Altherr (Karlsruhe) and J. Ferri~re (Villeneuve |  | | Journal (article/letter/editorial) | | University of Athens, Department of Geology, Section of Mineralogy and Petrology, Athens, Greece With...and the upper part to metavolcanics mainly of prehnite-pumpellyite facies. The plutonic sequence and...minerals, such as albite, chlorite, actinolite, prehnite, pumpellyite, epidote, white mica and calcite...basin system (Eastern Klamath Mountains, California, USA). Chem Geol 77:251-264 Brown AV, Jenner GA (1989)...Belt in Thrace area. Ph. D. thesis, University of Athens, Greece, 405 pp (1989) Relict minerals of metavolcanic |  | Stepanov, Sergey Y., Palamarchuk, Roman S., Varlamov, Dmitry A., Kiseleva, Darya V., Sharpyonok, Ludmila N., Škoda, Radek, Kasatkin, Anatoly V. (2021) The Features of Native Gold in Ore-Bearing Breccias with Realgar-Orpiment Cement of the Vorontsovskoe Deposit (Northern Urals, Russia) Minerals, 11 (5) 541 doi:10.3390/min11050541 | Journal (article/letter/editorial) | | include both common (orpiment, barite, pyrite, prehnite, realgar) and rare species (Tl and Hg sulfosalts...province [14]. 2.2. Local Geological Setting A quarry in the Vorontsovskoe deposit has exposed a wedge...(b) the photograph of the northern wall of the quarry with a tectonic contact between marmorized limestone...realgar-orpiment cement (sample 2016/2), exposed in one of the quarry layers. The white dotted line shows the boundary...samples were collected in 2016–2019 at the Northern quarry of the Vorontsovskoe deposit at horizons from –40 |
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