 | | Journal (article/letter/editorial) | | View of the Des Cèdres Dam, spinel occurrence, and marble. John Montgomery stands near the largest spinel-bearing...up to 6 cm) associated with euhedral, greenish forsterite (van Velthuizen 1993). This famous locality,...detail, by Sabina (1986). Spinel is found in a marble exposure on the north shore of the Lièvre River...They occur in a forsterite-rich rock surrounding fragments of feldspar-rich rock in marble. Aspidolite,...Metasedimentary Belt, Grenville Province. Precambrian marble of the Lièvre Group occurs throughout the Notre-Dame-du-Laus |  | | Journal (article/letter/editorial) | | relations. The skarns are mineralized blocks of marble of the Precambrian San Gorgonio Igneous-Metamorphic...Quartz Monzonite. They consist of cores of calcite-forsterite-diopsidemarble, surrounded by concentric zones...(l) Regional metamorphism formed tremolite and forsterite from calcite, dolomite, and quartz. (2) The intrusion...diopside * forsterite relative to tremolite * calcite. Reaction between quartz monzonite and marble resulted...tz, biotite-microcline-quartz), quartzite, and marble. Allen places the assemblagesin the kyanitestaurolite |  | | Journal (issue) | | ..................165 COVER: RUBY CORUNDUM in marble matrix, 13 cm (685 grams), nicknamed “The King...couple of famous localities: Spruce Ridge in King County, Washington (for quartz and pyrite) and the Rock...GOLD 10 cm Eagle’s Nest Mine Sage Hill, Placer County California, USA Ex M. Pospisil Collection Photo...release selections for sale! Dallas, Texas & Guilin, China info@iRocks.com Facebook.com/Arkenstone.iRocks |...including beryl, chrysoberyl, tourmaline, danburite, forsterite, fluorapatite, topaz, quartz and zircon, plus |  | | Journal (article/letter/editorial) | | 3: Looking north across the Soper River to the marble bands (white) in the background which have the...R Y / F E B R U A R Y 1983 13 Figure 4: Marble outcrops (white) of the south lazurite deposit in foreground...the most abundant being garnet-biotite gneiss and marble. I n addition, there are minor intrusions of pegmatite...minerals of interest to collectors are in marble. The marble is easily recognized as it is much lighter...the sur rounding gneiss (Fig. 4). The dolomitic marble is very coarse grained with cleavable masses up |  | | Journal (article/letter/editorial) | | IN REGIONALLY METAMORPHOSED SILICEOUS DOLOMITIC MARBLE OF THE SHARBOT LAKE DOMAIN, GRENVILLE PROVINCE...this study suggest that the Sharbot Lake domain marble and associated rock in the area underwent regional...greenschist- to amphibolite-facies conditions. Keywords: marble, field gradient, isograd, T–X(CO2) diagram, fluid...of the best preserved and most easily accessible marble belts in North America, for which geochemical data...diorite of the Lavant Igneous Complex exposed on County Road 9, ~1 km south of the Tatlock Quarry. Amphibole |  | Gallien, Florian, Mogessie, Aberra, Bjerg, Ernesto, Delpino, Sergio, Castro de Machuca, Brigida (2009) Contrasting fluid evolution of granulite-facies marbles: implications for a high-T intermediate-P terrain in the Famatinian Range, San-Juan, Argentina. Mineralogy and Petrology, 95 (1) 135-157 doi:10.1007/s00710-008-0026-1 | Journal (article/letter/editorial) | | ne-quartz—calcite marbles; Type (2) diopside-forsterite-spinel-corundum—calcite marbles with dolomite...exolution lamellae in calcite; Type (3) serpentinized forsterite-spinel-dolomite marbles. An isobaric cooling...decipher the fluid/rock evolution of the three marble types. An interpreted four-stage temperature-time-fluid...recognizable metasomatic event. In combination, the three marble types record fluid infiltration both before and...decimetre thick silicate-rich layers. In some outcrops intensely folded calc-silicate layers appear as |  | Le Bas, M. J., Xueming, Y., Taylor, R. N., Spiro, B., Milton, J. A., Peishan, Z. (2007) New evidence from a calcite-dolomite carbonatite dyke for the magmatic origin of the massive Bayan Obo ore-bearing dolomite marble, Inner Mongolia, China. Mineralogy and Petrology, 90 (3) 223-248 doi:10.1007/s00710-006-0177-x | Journal (article/letter/editorial) | | massive Bayan Obo ore-bearing dolomite marble, Inner Mongolia, China M. J. Le Bas1; , Y. Xueming2 , R. N...Geology, Chinese Academy of Sciences, Beijing, China 2 Received March 23, 2006; accepted October 2,...made between the original coarse-grained dolomite marble and dyke composition from the later fine-grained...and that the coarse-grained portions of the H8 marble are those portions that, in the Late Proterozoic...Introduction The origin of the massive H8 dolomite marble host to the giant Fe-REE ore deposit at Bayan Obo |  | | Journal (article/letter/editorial) | | 2008 Elsevier GmbH. All rights reserved. Keywords: Marble; Cathodoluminescence; Pohorje; Slovenia 1. Introduction...involved). Blue emission is always observed on the marble luminescence spectra but the colour is only visible... (1989) have shown the applicable use of CL in marble studies. They studied dolomite marbles in amphibolite...marbles, particularly in provenance studies of marble artefacts have been established (Barbin et al....structure (Sommer, 1972). Marbles from different outcrops from the Pohorje massif have been investigated |  | | Journal (article/letter/editorial) | | itierortiorphic Gcwl. 19x6. 4, 179-199 Petrology of marble and peridotite in the Seiad ultramafic complex...Eugene, OR, USA Abstract. Peridotite and infolded marble of the Seiad ultramafic complex were recrystallized...mineral reactions during metamorphism. Key-words: marble; peridotite; pore fluid composition; P-T conditions;...observed mineral assemblages, particularly within the marble and peridotite? Third, are phase diagrams calculated...between 200 and 162 m.y. It appears Petrology of marble and peridotite, Seiad, CA likely, based on K-Ar |  | | Report (issue) | | (Arth and others, 1986). Description of Rocks In outcrops, the Keokirk Quartz Diorite tends to break into...Lake (sc/vp) along with massive white coarse marble outcrops interpreted to be xenoliths of the Mission...feldspar. in order. A word of caution is Many outcrops of the rock have closely spaced (ca. 1-2 mm)...developed in the Amsden Formation, and consist of marble, fine-grained tactite, and coarse rocks whose mineral...quartz vein. The Dinwoody Formation is a mixture of marble and limesilicate. The small cap of Kootenai Formation |  | Lajoinie, MarÃa Florencia, Sial, Alcides, Ballivián Justiniano, Carlos Alberto, Cingolani, Carlos Alberto, Recio, Clemente, Etcheverry, Ricardo Oscar, Basei, Miguel, Lanfranchini, Mabel Elena (2019) First geochronological constraint for the Palaeoproterozoic Lomagundi-Jatuli δ13C anomaly in the Tandilia Belt basement (Argentina), RÃo de la Plata Craton. Precambrian Research, 334. 105477 doi:10.1016/j.precamres.2019.105477 | Journal (article/letter/editorial) | | recorded in calcite-diopside marble of the Tandilia Belt basement. The marble was found at the San Miguel...metamorphic activity in the Tandilia Belt basement. The marble, derived from a calcareous-siliciclastic sedimentary...correlation between the San Miguel marble and the Montevideo Formation marble of the Tandilia Terrane (Uruguay)...δ13C determinations in calcite crystals from the marble allowed the lowest and the highest carbon values...2002); Sino-Korean Craton and Hutuo Group, North China (Fig. 1d) (Tang et al., 2010; She et al., 2016); |  | | Journal (article/letter/editorial) | | high bulk-rock oxidation and high Mn component. Marble inclusions have been metasomatically altered by...grossularite are the common calcsilicate phases. Marble pebbles are present along with metachert pebbles...Tr = tremolite, Ta = talc, Do = dolomite, Fo = forsterite. Downloaded from https://pubs.geoscienceworld...from the eastern contact of the pendant. A nearby marble sample (255) contains the assemblage grossularite...the surrounding schists. On a regional scale, the marble is concentrated in a zone which approximately conforms |  | | Journal (article/letter/editorial) | | Samples 4, 5, 6, and 7 were collected from marble outcrops in the central to south-central Adirondack...MATERIALS AND METHODS Eight samples of diopside marble were selected for this study, from the Adirondack...large marble xenolith, located at Cascade Slide in the Mt. Marcy Quadrangle (Fig. 1). The marble is a...Fig. 2. Diopside grains dissolved from calcite marble (sample 1) from Cascade Slide (locality # 1–3 in...Techniques 2.3.2. Results Several kilograms of marble were broken into 4 – 8 centimeter diameter pieces |  | | Journal (article/letter/editorial) | | the development of the complex. Small areas of marble caught in the ring fault system of eastern Rhum...the highly metamorphosed tilleyite-bearing marble outcrops south of AlIt na Ba there is an outcrop of...of coarse-grained, slightly sheared marble containing belemnite and brachiopod(?) remains (13867, 138681)...however, after re-examination of the critical outcrops in the company of Dr. J. E. Richey, reinstated...age of the conglomerate, for Lewisian on Rhum outcrops only in the uplifted central block within the |  | | Journal (article/letter/editorial) | | Springer-Verlag 1994 Textural and isotopic development of marble assemblages during the Barrovian-style M2 metamorphic...Abstract. A detailed petrological analysis of the marble assemblages observed within the M2 metamorphic...rocks are interlayercd with thin (< 50 m) calcite marble horizons. Rare dolomite horizons may also be found...lithologies are interlayered with thesc thick (> 100 m) marble horizons. The Lower and Upper Series are presumed...Palaeozoic-Mesozoic in age (e. g. Diirr et al. 1978). The outcrops of these three units are shown on Fig. 1. The |  | | Report (issue) | | Washington, AJ-20, Seattle, Washington 98195 3SWMD, King County Department of Public Works, Seattle, Washington...sandstone, siltstone, shale and minor limestone. Marble in the Chilliwack yields fossils ranging in age...appears to be a fault bounded block within extensive outcrops of Easton Metamorphic Suite. Tabor and others...(phyllite), ribbon chert, basalt, and very rare marble. Commonly in or associated with the Elbow Lake...a protolith of oceanic chert and basalt. Minor marble and small bodies of metamorphosed ultramafic rock |  | | Journal (article/letter/editorial) | | Amsterdam [CHI Steep oxygen-isotope gradients at marble-metagranite contacts in the northwest Adirondack...Steep isotopic gradients are present at orthogneiss-marble contacts elsewhere in the Adirondacks, suggesting...fights reserved STEEP OXYGEN-ISOTOPE GRADIENTS AT MARBLE-METAGRANITE CONTACTS IN THE ADIRONDACK MOUNTAINS...Lowlands consist largely of supracrustal rocks with marble layers that are commonly > 200 m thick making up...chlorite. The metagranites contain xenoliths of marble and other metasediments, cut bedding in the adjacent |  | Coats, J. S., Shaw, M. H., Smith, R. T., Rollin, K. E., Smith, C. G., Fortey, N. J. (1996) Mineral exploration for gold and base metals in the Lewisian and associated rocks of the Glenelg area north-west Scotland. Mineral Reconnaissance Programme Report 140. British Geological Survey | Report (issue) | | further lithogeochemical sampling completed of the outcrops of the banded iron formation and associated lithologies...quartz-feldspar gneiss. Bands and lenses of forsterite marble occur sporadically through the homblende-biotite...These unusual iron-rich rocks are associated with marble and pelite and are thought by May et al. ( 1993)...to be metasedimentary ironstones. Some of the outcrops of iron-rich rocks show evidence of trial excavations...stream sediments that drain the outcrops, probably because their outcrops are too small. Cobalt Cobalt levels |  | | Report (volume) | | thoroughly brecciated by frost action that solid-rock outcrops are scarce, although loose blocks pried from bedrock...rocks composed dominantly of calcite and that "marble" be reserved as a commercial term designating carbonate...cleavage imparts a shaly appearance to weathered outcrops. The schist consists of y&- to 6-inch beds, of...cleavage gives a slaty appearance to weathered outcrops. Quartz-graphite schist occurs in zones, several...most of the highest hills in the area and forms outcrops more commonly than any other rock of pre-Quaternary |  | | Journal (article/letter/editorial) | | sections of ore-bearing skarns are confined to marble outcrops of the Permian Turinskaya suite. Ore-bearing...bodies along the hornfels-marble contact, and rarely in the granite-marble contact with. Skarn bodies...Neoproterozoic limestone strata. Near the deposit, outcrops of Precambrian magnetite-bearing quartzite are...Skarn mineralogy changes to tremolite-wollastonite marble. Magnetite ore bodies, 800 m long and 100 m thick...granitoid pluton (3 km2) and the Lower Carboniferous marble (Litvin 1959). The major pluton phase is granodiorite |  | | Journal (issue) | | Gemmological Brief Detection of Ruby Crystals in Marble Host Rock by X-ray Computed Tomography By Antonia...GemeWizard Ltd., Ramat Gan, Israel; Guanghai Shi, China University of Geosciences, Beijing; James E. Shigley...the smell of ‘burning horn’ when the Hildesheim marble from Saxony was ‘struck with an iron or stone’...found in July 2012 at Misquamicut in Washington County, Rhode Island, USA. The location where the pearl...showed this author some nice samples of ruby in marble matrix, as well as a diverse collection of rare |  | | Book (volume) | | greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...clear to slightly blue topazes. However, San Diego County, California, is arguably the most important gem-pegmatite...similar nicks and hair-line cracks are on antique china and glassware. Even barely discernible damage is...coating molds of brachiopod shells in Somerset County. The restriction formerly placed on a mineral's |  | | 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............................................. 170 County Index ...........................................from Washington and Bleck ley counties to Irwin county. Some minerals described herein have never been...the 1880's and 1890's, and the development of the marble and granite industries in the late 19th century |  | | Report (issue) | | metamorphosed clastic strata through¬ out eastern San Diego County. Forty kilometers south of the international border...southeastern San Jacinto Moun¬ tains, Riverside County, California [M.S. thesis]: Riverside, University...members are marble, the middle member is interbedded schist and quartzite with minor marble. The lower...gray, fine-grained, silty marble. In the core of the anticline the marble is massive with alternating...alternating discontinuous white and gray laminations. The marble contains black to dark gray, fine-grained quartzite |  | | Report (issue) | | Museum, 1943. KENNEDY, W.Q. Dolomite and brucite marble in the Scottish Highlands. Supplement no. 1. Additional...Additional information concerning brucite marble in Skye. Wartime pamphlet no. 6. London : Geological...Museum, 1941. KENNEDY, W.Q. Dolomite and brucite marble in the Scottish Highlands. Wartime pamphlet no...Edinburgh : HMSO, 1954. KNOX, W.Q. Dolomite and brucite marble in the Scottish Highlands. Supplement no. 2. Durness..............................201 P527739 Brucite marble from Ledbeg, Assynt, Sutherland .............. |
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