 | | Journal (article/letter/editorial) | | wollastonite, 649; lithian tourmaline, 747 Newhurst quarry, Shepshed, Leicestershire, vesigni6ite, 533 Cornwall...493 Loch Langavat, dunite, 493 Scara Ruadh, serpentinite, chlorite-tremolite schist, anthophyllitite...glauconite, 753 SCOTLAND France Auchinstarry quarry, Kil~yth, Stirlingshire, julgoldite, 761 Blackcraig... 59 Portsoy, Banffshire, migmatites, 66r Ratho quarry, Edinburgh, julgoldite, 761 Champagnac, Cantal...Montboissier, Puy-de-Dome, basalt, ultrabasic xenoliths, r53 Mont Dore, Puy-de-Dome, zircon, 79o Plan de la Tour |  | | Book | | Udubaşa (1938, Ocnele Mari, Romania) Director of the Geological Institute of Romania, Bucharest; President...President of the Mineralogical Society of Romania; Member of the Commission for New Minerals and Mineral Names...and about 100 articles - one-third outside of Romania. Rudolf Duda (1944, Vojany, Slovakia) Head of the...Hungary (Sándor Szakáll) Poland (Ewa Kos/.owska) Romania (Gheorghe Udubasa) Slovakia (Rudolf Duda) Ukraine...Hungary (Sándor Szakáll), Poland (Ewa Kos/.owska). Romania (Gheorghe Udubasa), Slovakia (Rudolf Duda). Ukraine |  | | Report (edition) | | chalcopyrite crystals etched calcite, from French Creek mines, (courtesy of John S. White) Back cover:... “old” Lime Bluff quarry, Muncy; right fibrous : tremolite, C. K. Williams quarry, Easton: bottom: calcite...oriented coatings of goethite, “old” Lime Bluff quarry, Muncy, (courtesy of Delbert L. Oswald) ADDITIONAL...edition of Mineral Collecting Cedar Hill in quarry where Dave had done IV much of his work PREFACE...permission from the owners of the land, from the quarry or mine operators before entering to collect. (Land |  | | | | Fitzhenry & Whiteside Canadian Museum of Musée canadien de la Saad @./ NATURE Beginner’s Guide to Rocks and...Canada vw ONTARIO ARTS COUNCIL CONSEIL DES ARTS DE L'ONTARIO Library and Archives Canada Cataloguing...Dark amphibole gneiss (p. 280) slate (p. 284) serpentinite (p. 298) 13 Geological Regions of Canada...California, USA, weighing 72.78 kg. Transylvania, Romania; Roraima, Brazil; Witwatersrand, Republic of South...Mine, Kamloops District, British Columbia; Burwash Creek, Yukon Territory; Coppercorp Mine, Algoma District |  | | Report (issue) | | oxides, tremolite, serpentine, diopside, and forsterite. Intrusive magmas locally appear to be heat and...are commonly, at least in part, converted to serpentinite during their emplacement as ophiolite fragments...solutions have steatized part or all of the serpentinite bodies, producing either a body having zones...belt. Talc deposits are in zoned lenticular serpentinite bodies. Talc deposits in the Winterboro district...Proterozoic gneiss. Hydrothermal alteration has formed serpentinite and rocks composed of pure talc or talc accompanied |  | | Book (edition) | | lepidolite (trilithionite-polylithionite), olivine (forsterite-fayalite), and wolframite (ferberitehiibnerite)..."Dana's System of Mineralogy•· ( 1944, I 951, 1962). de Fourestier (1999) and Strunz and Nickel (2001). Mi11eral...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...ASG -Archives de Science Geneve BM - Bulletin de la Societe fram;aise de mineralogie et de cristallographie...Uintah County. Utah. and m (2.B. acanthite group). Monoclinic, C2/m, a,b,c Rio Blanco County. Colorado |  | | Book | | deposit. comparable in value to the richer metal de- posits. Robert L. Bates (1969): GeologJ of the...Industrial raw materials (e.g., highly refractory forsterite or sillimanite, expanded perlite or vermiculite...magmatic origin (diamond, graphite, corundum, forsterite, apatite, eruptive rocks) form by crystallization...deep faults. Diamond, graphite, corundum and forsterite crystallized and concentrated in the early magmatic...chrysoberyl. Leaching of SiOp from pegmatite in serpentinite gives rise to zeolites, carbonates and clay |  | | Journal (article/letter/editorial) | | antigorite. Goorocrc OccunnnNcp The Cedar Hill Quarry from which these deweylite samples came is located...Pennsylvania-Maryland state line, in Lancaster County. Deweylite may also be found at the old Wood chromite...Selfridge (1936, p. 483, 484, 499). The Cedar Hill Quarry is composedof serpentinized dunite which has been...weathered along fault and fracture planes. This serpentinite is part of a NE-SW trending belt of ultramafics...magnesite-dolomite matrix. The spotted appearanceof the serpentinite in the breccia is the result of differential |  | | Book | | Upton: M. J. O'Hara and K. G. Cox. K. D. Watson: J. de Grosse, Mrs. O. L. Kurtz, D. L. Watson, L. S. Weymouth...173 The tectonic history of multiply deformed serpentinite in the piedmont of Pennsylvania By Davis M.... LAPHAM A. Structural aspects of the serpentinite problem B. Techniques of structural analysis C...Macrostructures in schist and serpentinite Microstructures in schist and serpentinite Theoretical considerations...Introduction Experimental deformation and strength of serpentinite Deformation of peridotite minerals Conclusions |  | | Journal (article/letter/editorial) | | outermost zone of the Bergell aureole in the Malenco Serpentinite, Prov. Sondrio, Italy. The breakdown coincides...pressure of 3 kbars. Elsewhere in the Malenco Serpentinite, titanian hydroxyl-clinohumite may be found...Carpanese 1933; de Quervain 1938; Bearth 1967 ; M6ckel 1969). The large serpentinite mass of Val Malenco...vicinity of the Bergell Tonalite, the Malenco Serpentinite has undergone progressive contact m e t a m...III. Clinohumite in the Malenco Serpentinite The Malenco Serpentinite is a schistose antigorite-rich rock |  | | Journal (article/letter/editorial) | | peridotites demonstrate that the dissolution of forsterite and/or enstatite is rapid compared with the precipitation...excellent studies have been conducted on the serpentinite bodies at Burro Mountain, California (PAGE,...mineral saturation curves. Per. = periclase, Fo. = forsterite, En. = enstatite, Ta. = talc, Serp. = serpentine...solutions entering a peridotite may dissolve forsterite and enstatite until saturation with respect to...(2) a solution undersaturated with respect to forsterite and enstatite may enter a peridotite and these |  | | Book | | .,a~ ,:::- • Canadian Museum of Musee canadien de la \..,~ NATURE Fitzhenry & Whiteside •"""'liir... •"""'liir. ,::- • Canadian Museu m of Mu see canadien de ta (...,~ NATURE Beginner's Guide to Rocks and...Canada PA ONTARIO ARTS COUNCIL JI-I\ CONSEIL DES ARTS DE L'ONTARIO Library and Archives Canada Cataloguing...Dark amphibole gneiss {p. 280) slate {p. 284) serpentinite (p. 298) 13 Geological Regions of Canada...Kam loops Disttict, British Colu1nbia; Burwash Creek, Yukon Te1Titory; Coppercorp Mine, Algo1na District |  | | Journal (article/letter/editorial) | | major groups: the Cherry Creek, a distinct metasedimentary unit; the pre-Cherry Creek, containing hornblende...Ruby Range was Heinrich's (1963) study of the Wolf Creek pluton. This body is located in the southeast corner...relationships and economic potential of the Wolf Creek pluton and called the ultramafic body "saxonite"... 71 , I k \< - .) / i O~ 0 0 k k ,\\ EII~Creek FauH / / '!1 12 o o X ~N \ ' .m \\ \ ~00...Strike 81 Dip of Foliation Hornblende [~ Serpentinite [~ Rodinglte. Gneiss Plunging Overf u r |  | | Journal (issue) | | geothermal lease sale held in January. . . .. Josephine County mineral study completed. . . . . .. 23 36 36...gneisses along the Scott River between McGuffy Creek and Townsend Gulch. Barrows also indicates that...clinopyroxene schists and gneisses between Tompkins Creek and George Allen Gulch along the Scott River. Amphibolite-facies...compositions in the CaMgSh06 (diopside)-MglSi0 4 (forsterite)-Mg2Sh06 (enstatite) triangle (Figure 4). Frequently...Figure 4: Antigorite= 18 forsterite+4talc+27 H 20 (I) 9 talc + 4 forsterite = 5 anthophyllite + H 20 |  | | Journal (article/letter/editorial) | | are developed on anthophyllite-enstatite and forsterite rocks, partly serpentinized. Tremolite is paragenetically...paragenesis, talc and magnetite, talc and serpentinite, talc with forsterite and anthophyllite. Index to minerals...anthophyllite; En - enstatite; Fo - forsterite; Srp - serpentinite; Spl - spilite; Mu muscovite; Ab -...formed in direct decomposition of anthophyllite, forsterite, and to a smaller extent, serpentine. The second...anthophyllite; En - enstatite; Fo - forsterite; Srp - serpentinite; Spl - spilite; Mu - muscovite; Ab |  | | Journal (article/letter/editorial) | | Contact Metamorphism of Serpentinite, Chloritic Blackwall and Rodingite at Paddy-Go-Easy Pass, Central...The 2 km wide contact aureole produced from serpentinite by the intrusion of the Mount Stuart Batholith...serpentine-forsterite-diopside, serpentine-forsterite-tremolite, forsterite-talc, forsterite-anthophyllite...lite, forsterite-enstatite-anthophyllite, forsterite-enstatite-chlorite, forsterite-enstatite-spinel...field of forsterite+tremolite, these chlorite-rich rocks react to form the assemblage: forsterite-enstatite-spinel |  | | Journal (article/letter/editorial) | | Contact Metamorphism of Serpentinite, Chloritic Blackwall and Rodingite at Paddy-Go-Easy Pass, Central...The 2 km wide contact aureole produced from serpentinite by the intrusion of the Mount Stuart Batholith...serpentine-forsterite-diopside, serpentine-forsterite-tremolite, forsterite-talc, forsterite-anthophyllite...lite, forsterite-enstatite-anthophyllite, forsterite-enstatite-chlorite, forsterite-enstatite-spinel...field of forsterite+tremolite, these chlorite-rich rocks react to form the assemblage: forsterite-enstatite-spinel |  | Barnes, Ivan, Rapp, John B., O'Neil, James R., Sheppard, Richard A., Gude, Arthur J. (1972) Metamorphic assemblages and the direction of flow of metamorphic fluids in four instances of serpentinization. Contributions to Mineralogy and Petrology, 35 (3) 263-276 doi:10.1007/bf00371220 | Journal (article/letter/editorial) | | waters are u n s a t u r a t e d with respect to forsterite a n d clinoenstatite. I n f u r t h e r work...type water in that they are unsaturated with forsterite, supersaturated with diopside, and supersaturated...Complexion Spring in Lake County, California, issues from serpentinite. The serpentinite is the chrysotile-lizardite...Complexion Spring. Aqua de Ney in Siskiyou County, California and TC-2 in Trinity County, California both issue...altered dacite and serpentinite of the felted antigorite type. At the Trinity County locality are magadiite |  | | Journal (article/letter/editorial) | | University on 06/09/12. For personal use only. SERPENTINITE Bernard W. Evans Department of Geological Sciences...C, chrysotile; Br, brucite; A, antigorite; F, forsterite; Amph, Ca-poor amphibole; E, enstatite; Hb, hornblende...zeolite pumpellyite } lizardite/chrysotile serpentinite blueschist "low" greenschist "low" eclogite...eclogite } } brucite-antigorite serpentinite diopside-antigorite peridotite "high" greenschist amphibolite...diopside antigorite peridotite (or olivine-serpentinite) with a "low" eclogite facies and green schist |  | | Journal (article/letter/editorial) | | (3) maximum temperatures. I Usage of the terms serpentinite, "serpentine", and serpentine-group minerals...specificreactionstudied was that between clinochrysotileand forsterite, taic, and water vapor. For talc, however,one...the minimum temperature for the breakdown of forsterite to yield clinochrysotileplus brucite in the presenceof...intimate mixture with "serpentine." Massive serpentinite at Leopoldsgriin,W. Germany, (Hahn-Weinheimerand...modestpercentagesof brucite are scatteredthrough much of the serpentinite taken from the AMSOC core hole near Mayaguez |  | | Book | | canadien de la nature Text copyright © 1994 by Canadian Museum of Nature/ Musee canadien de la nature...volcanos in Iceland, or black smokers along the Juan de Fuca ridge beneath the Pacific Ocean, also provide... P L A T E .4. Calcite. Herja, Transylvania, Romania. s x 7 cm. Calciteisstableoverabroadrange of t...I have ever visited was exposed by the Francon quarry on Montreal P L AT E 1 4 Pyrochlore crystals...technology. P L AT E I S Weloganite. Francon quarry, Montreal, Quebec. 4.s-cm crystal. Named for W |  | | Journal (article/letter/editorial) | | the presence of antigorite indicates that the serpentinite has undergone prograde metamorphism or that...importance of the two processes for an individual serpentinite are: (1) determination of the mineral assemblage...fluid composition on hydration and mineralogy of serpentinite; and (6) the origin of the serpentinizing fluids...temperature of serpentinization: 2Mg2SiO4 + 3 H 2 0 = forsterite = Mg3Si2Os(OH)4 + Mg(OH) 2 chrysotile brucite...serpentine ~.lone: 6Mg2SiO4 + Mg3Si40 lo(OH)2 + forsterite talc + 9H20 = 5Mg3Si2Os(O chrysotile (2) (Chernosky |  | | Journal (article/letter/editorial) | | hydration of peridotite at 425 570~ C. Talc-rich serpentinite formed along the thrust as a result of the infiltration...section (Hotz 1978). The Trinity peridotite/serpentinite was first recognized by Hinds (1935) and regional... typically occurring as cores in chromite. Serpentinite mineralogy The serpentine "polymorph(s)" present...reaction (84-26). F Tremolite (tr) formed in the Sugar Creek contact aureole cut by lizardite (Iz) vein (84-47D)...tion of the Trinity peridotite must lie between forsterite and enstatite. The addition of H 2 0 to the Trinity |  | | Corporate Document (Series) | | 1920s. [MRT collection] 8 gold mine at Lynch Creek in 1881, encouraging other prospectors to the area...Johannes 'Steve' Karlson discovered gold in the Linda Creek valley in 1883 in gossan capping the 'Iron Blow'...McDonald found alluvial gold in nearby Rosebery Creek in 1887, as well as boulders of zinc and lead on...= fluorite Chromite Chrysocolla Chrysolite = forsterite Chrysotile Cimolite = ?kaolinite Cinnabar (?)...interesting occurrence has been noted at Bonney's quarry, south of Burnie, where radiating acicular natrolite |  | | Journal (article/letter/editorial) | | zone comprise serpentinized orthopyroxenite and serpentinite. An alteration zone with vein-type bedding comprises...from bottom to top they are: (1) green-brown serpentinite with dolomite (0.9 m), (2) light greenish-white...Ca-Al-silicates. Carbonate minerals are replaced in serpentinite rather than in peridotite, and the mineral assemblages...subdivided into four members, namely the Edige serpentinite that hosts the sepiolite occurrences, the Çanakçıtepe...olivine-orthopyroxenites and meshstructured, green serpentinite breccias. Four different levels, which pass |
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