 | | Journal (article/letter/editorial) | | occurrence of cymrite in black shale, north-west Nelson, South Island, New Zealand CYMRITE, BaA1SiaOa(OH)...south-central Brooks Range, Alaska. A further occurrence of cymrite from the Brooks Range, Alaska, was...an area near Aorangi gold mine, north-west Nelson, South Island, cymrite was identified by X-ray diffraction...I5" E.). We believe this is the first report of cymrite in New Zealand. Furthermore, we have noted that...in the mode of occurrence of the Aorangi Mine cymrite to that described by Brosg6 096o). The mineral |  | | Journal (article/letter/editorial) | | JANUARY_FEBRUARY, 1964 N,{INERALOGICALNOTES CYMRITE IN A COPPERDEPOSIT,BROOKSRANGE, ALASKA DoNar,n...Cosmos Hills, Brooks Range, Alaska, *-ray and optical examination shows the presence of cymrite, a rare hydrous...Al2q.5 SiOr.3.65HrO) inmanyof thespecimens.The cymrite occurs from near the surface to depths of several...groups of foothills on the south side of the Brooks Range. The geologyof the Ruby Creek prospect is describedbriefly...writer (1963). PnBvrousr-v RBponrBp OccunnpNcns Cymrite was originally described by Smith et al. (1949) |  | | Journal (article/letter/editorial) | | Petrol (1982) 79:333 336 9 Springer-Verlag 1982 Cymrite and Celsian in Manganese-Rich Metamorphic Rocks...the island of Andros (Cyclades/Greece) contain cymrite (BaA12Si2Os.H20) and celsian. The textural relationships...relationships indicate replacement of celsian by cymrite. Several microprobe analyses of cymrites show a...natural example for the reaction celsian+water= cymrite, The rocks from Andros underwent an Eocene high...Barrovian type metamorphism. It is assumed that both cymrite and celsian were formed at conditions near the |  | | Journal (article/letter/editorial) | | yet been satisfactorily demonstrated; suggestions range from occupancy of the A site by H30 + to minor replacement...occurrence of cymrite in black shale, north-west Nelson, South Island, New Zealand CYMRITE, BaA1SiaOa(OH)...south-central Brooks Range, Alaska. A further occurrence of cymrite from the Brooks Range, Alaska, was...an area near Aorangi gold mine, north-west Nelson, South Island, cymrite was identified by X-ray diffraction...I5" E.). We believe this is the first report of cymrite in New Zealand. Furthermore, we have noted that |  | | Report (issue) | | BaAl2 Si2 (O; OH)8 ² H2 O Cymrite c 2001 ° Mineral Data Publishing, version 1.2 Crystal Data: Monoclinic...7.662{7.705 ¯ = 90± X-ray Powder Pattern: Brooks Range, Alaska, USA. 2.96 (100), 3.96 (90), 2.67 (70)...VÄarmland, Sweden. In the USA, from Ruby Creek, Brooks Range, Alaska, and near Pacheco Pass, San Benito Co...Smith, W., F.A. Bannister, and M.H. Hey (1949) Cymrite, a new barium mineral from the Benallt manganese...1). (3) Runnells, D.D. (1964) Cymrite in a copper deposit, Brooks Range, Alaska. Amer. Mineral., 49, 158{165 |  | | Journal (article/letter/editorial) | | 52, NOVEMBER_DECEMBER, 1967 AN OCCURRENCEOF CYMRITE IN THE FRANCISCANFORMATION,CAUFORNIA E. J. EssoNn...ornia. heretoforefound only in Wales The mineral cymrite, BaAl2Si2O3.H2O, and Alaska,2was discoveredby the...calcite,albite, lawsonite, and more rarely cymrite veins. The cymrite is seenin hand specimen as coarseplatelets...of larnrsoniteand cymrite, and albitized jadeite relicts remain. Veinlets of cymrite-lawsonitemay be found...lawsonite, albite and cymrite show no signs of reaction. Optical properties of the cymrite closely match those |  | Sorokhtina, N. V., Chukanov, N. V., Voloshin, A. V., Pakhomovsky, Ya. A., Bogdanova, A. N., Moiseev, M. M. (2008) Cymrite as an indicator of high barium activity in the formation of hydrothermal rocks related to carbonatites of the Kola Peninsula. Geology of Ore Deposits, 50 (7) 620-628 doi:10.1134/s1075701508070131 | Journal (article/letter/editorial) | | 102–108. MINERALS AND PARAGENESES OF MINERALS Cymrite As an Indicator of High Barium Activity in the...bInstitute Received November 29, 2006 Abstract—Cymrite, BaAl2Si2O8 · nH2O, is a rare mineral formed during...dynamothermal metamorphism (T = 250–300°C, P = 1–3 kbar). Cymrite has been described from many metasedimentary ores...carbonatites, it has been found for the first time. Cymrite has been identified in the Kovdor and Seblyavr...pyroxenite–melilitite–ijolite complex at the Phlogopite deposit; cymrite is associated with thomsonite, calcite, and stivensite |  | | Journal (article/letter/editorial) | | the SchwatkaMountains sectionof the western Brooks Range, 300 miles northwest of Fairbanks, Alaska. The...vertically aboveand below central channelways. Cymrite (BaA12Si208'H20) appearsto be a characteristic...by a mechanismfrom approximately156o30 tude, at North Latitude 67o00 ' . Fairbanks lies about similarto...for about 20 miles east-west and about 10 miles north-south. The pelitic strata exhibit mineral as- high...are the most abundant rocks in the area. They range in texture from coarsebrecciato well-bedded calcarenite |  | | Journal (article/letter/editorial) | | 118:314 320 9 Springer-Verlag 1994 L. C. Hsu Cymrite: new occurrence and stability Received: 18 November...Accepted: 8 July 1994 Abstract The rare mineral cymrite, BaA12Si2Os'H20, was discovered in Nevada in a...containing anhedral pyrite crystals up to 1 cm. Cymrite forms rectangular grains ca 40 lam across, distributed...aggregates, instead of a single crystal of cymrite. This cymrite m a y have replaced a pre-existing rectangular... most likely barite. The Nevada occurrence of cymrite prompted a restudy of its stability relations. |  | | Journal (article/letter/editorial) | | 1039-1051 (2001) CELSIAN, (Ba,K)-FELDSPAR AND CYMRITE FROM SEDEX BARITE DEPOSITS OF ZAMORA, SPAIN MARIA...Salamanca, Spain ABSTRACT (Ba,K)-feldspars occur with cymrite as thin layers of massive fine-grained celsian...discontinuities, at 8–24 and 40–92 mol.%. The associated cymrite shows 1.3–3 mol.% KAlSi3O8 in solid solution. Relict...during a later diagenetic or metamorphic event. Cymrite and celsian were formed under low-grade dynamothermal...reaction curve for celsian + H2O = cymrite. The stability field of cymrite confirms that this mineral can |  | | Journal (article/letter/editorial) | | the Tan-y-Grisiau microgranite, Merionetshire, North Wales (Bromley). . . . Allevardite (Brown, \\'eir)...the -l-an-y-Grisiau microgranite, Merionethshire,North Wales Brown, G. and Weir, A. H. . . . Buddingtonite...Zaitsevzr) Carpenter, R. H. and Desborough, G. A. Range in solid solution and structure of naturally occurring...1031 Celsian, BaAl2Si2Os, phase relations between cymrite, BaAlSirOs(OH), and (Seki, Kennedy) 1407 Cenosite...chemical, optical and r-raY 963 study(Klein)... Cymrite, BaAlSi3Os(OH), md celsian, BaAlzSizOs. Phase relations |  | | Journal (article/letter/editorial) | | P. (1960) Metasedimentary rocks in the S. C. Brooks Range, Alaska. [/. S. GeoI.Surt. Prof. Pap.400B, 8351...E,. Mnosr, ANDA. N. Rusrn (1964) Nerv data on cymrite, a hydrated silicate of barium and aluminum. (abstr...270. RuwNrr.r.s,D. D. (1964) Cymrite in a copper deposit, Brooks Range, Alaska. Amer. M i.nerol,.49,...W. C., F. A. BenNrsrnn, ,q,r'oM. H. Hev (1949)Cymrite, a new barium mineral from the Benallt manganesemine...0' 1. Durango, Mexico 2. Topaz Mountain, Thomas Range, 8.394 8.789 4.652 Utah SanLuis Potosi,Mexico |  | | Journal (article/letter/editorial) | | hyalophane in manganese-rich iron-formation, Cuyuna Iron Range, Minnesota, USA PETER L. McSWIGGEN, G. B. MOREY...Ba)AII_2Si3_2Os] on the North range segment of the Early Proterozoic Cuyuna Iron Range of east-central Minnesota...Sr-rich baryte veins elsewhere in the Cuyuna North range. KEVWOROS: hyalophane, Ba-feldspar, iron-formation...manganese deposits, hydrothermal activity, Cuyuna Iron Range, Minnesota. Introduction OUR recent discovery of...iron ores of the Early Proterozoic Cuyuna Iron Range of east-central Minnesota has contributed to a re-evaluation |  | | Journal (article/letter/editorial) | | phlogopite, K-Ti-richterite, spinel, perovskite, cymrite, apatite, barite, Ba-Sr- bearing calcite, gittinsite...of calcite, with lesser Ba-Srbearing calcite, cymrite, barite, strontianite, witherite, apatite, and...residual calcite and carbonate clasts host prismatic cymrite crystals which are interpreted as pseudomorphs...a lamproite. Square-to-rectangular crystals of cymrite and hydrogrossular occur in the carbonate clasts...K-Tirichterite, together with the presence of cymrite pseudomorphs, possibly after potassium feldspar |  | | Report (issue) | | Mountains 1:250,000 quadrangle, in the southwestern Brooks Range, roughly bounded by the Kobuk and Noatak Rivers...structural trends extending for the length of the Brooks Range change abruptly in the Baird Mountains. The...regional strike changes from an easterly trend to a north-northeasterly trend for the western half of the...of lower to middle Paleozoic carbonates. To the north of these schists and carbonates are middle and...References designated as regional are limited to the Brooks Range. Annotations are brief, pertain only to the |  | | Journal (article/letter/editorial) | | overprinting (see Platt, 1993, for a recent review). The North American Cordillera contains numerous HP/LT terranes...information was available or an excessively wide range of conditions were reported, our own ‘best guess’...west-facing arc separated from the miogeocline of North America by a marginal basin of unknown width (the ‘McCloud...beneath North America (Burchfiel et al., 1992). The single early Palaeozoic HP/LT terrane in the North American...American Cordillera, the schists of Skookum Gulch in north-east California (Table 2), probably formed in an |  | | Journal (article/letter/editorial) | | (1960) Metasedimentary rocks in the south-central Brooks Range, Alaska. U. S. Geol,.Suroey Prof . Paper 4O0-8...W. C., F. A. B,q,nrrsron axl M. H. Hrv. (1949)Cymrite,a newbariummineral from the Benallt manganese mine...of the stage causeseach grain to sweep through a range of colors. Pore spacesand isotropic crystals remain |  | | Journal (article/letter/editorial) | | along the Noatak and Kobuk rivers south of the Brooks Range in Alaska (Loney and Himmelberg, 1985). Archeologically...et al., 2000 Central Motagua Valley, Guatemala North side–El Progreso and Zacapa McBirney et al., 1967;...Cowell nephrite province occurs 25 km north of Cowell (~220 km north of Adelaide), South Australia and is...in a Permo-Triassic suture zone of western North America. Variations in zoning and mineralogy occur,...at Red Mountain Creek, Trinity Co., in the Coast Range tectonic belt of California. R. Coleman, F. Wicks |  | | Report (issue) | | volcanogenic sulphide mineralisation at Benglog, North· Wales I I I I I I I I I I I I I I I I I I I I...volcanogenic sulphide mineralisation at Benglog, North Wales Geochemistry D. C. Cooper, BSc, PhD D. G...Geochemical and geophysical investigations north• west of Llanrwst, North Wales 23 Disseminated sulphide mineralisation...of part of Anglesey, North Wales Copper mineralisation near Middleton Tyas, North Yorkshire 55 28 A...Scotland 29 Mineral exploration in the Harlech Dome, North Wales 57 Mineral exploration in the Ravenstonedale |  | | Report (issue) | | Alatna and John Rivers and the North Fork of the Koyukuk River, Brooks Range, Alaska: A summary report: U...the Salmon and Noatak Rivers in the western Brooks Range; A summary report: U.S. Bureau of Mines Open-File...and covellite. Other minerals identified include cymrite (a hydrous silicate containing barium), malachite...time and origin to volcanogenic deposits to the north such as Arctic deposit. The deposit has been known..." and native copper in streams. Float from the north side of the divide contained tetrahedrite. Assays |  | | Report (issue) | | mineral resources of the Ambler River quadrangle, Brooks Range, Alaska, prepared under the auspices of the...Open-File (OF) Reports the Noatak River. Elevations range from 30 m (100ft) along the lower Kobuk River in...visible as small stagnant ice fields in a few of the north-facing cirques in the east-central part of the quadrangle...Baird and Schwatka Mountains of the southwest Brooks /Range trend in a west-northwesterly direction through...quadrangle flow into the Kobuk River, and in the north half, they flow into 2 ARCTIC OCEAN CHUKCHI |  | | Report (issue) | | in the Ambler River l:250,000-scale quadrangle, north central Alaska This and related reports are accessible...Geological Survey editorial standards or with the North American Stratigraphic code. Any use of trade, product...accuracy: Located on ridge southeast of VABM Rich and north of VABM Hunt in T. 22 N., R. 1 W., Kateel River...accuracy: Located on ridge east of VABM Rich and north of VABM Hunt in T. 22 N., R. 1 W., Kateel River...157 Location description and accuracy: Located at north end of Bannock Mountain, Cosmos Hills, in T. 19 |  | | Journal (article/letter/editorial) | | thickness(1,830 m) in the Arctic area. The Ambler over a range(<250 m) in elevation.For reconstruct- sequencelies...are generallytightlyto isoclinallyfoldedin the north stratigraphicposition.Each of the major lithologies...ned. 168ø 152ø 148ø 164ø 160ø 144" 140" BROoKs RANGE iI • AMBLER ',0 DISTRICT '_c_tic Circle Fairbanks"...interlayeredgraphitic schistincreases greatly to the north and east (over 1 km distance), suggestinga southwesterlysource...200 to 350 m.y., which is evidenceof someearlier north-south-trendingsmall- consistent with a minimumageof |  | Jiang, Shao-Yong, Palmer, M. R., Li, Yan-He, Xue, Chun-Ji (1996) Ba-rich micas from the Yindongzi-Daxigou Pb-Zn-Ag and Fe deposits, Qinling, northwestern China. Mineralogical Magazine, 60 (400) 433-445 doi:10.1180/minmag.1996.060.400.05 | Journal (article/letter/editorial) | | Pb-Zn deposit in the Qinling mineralised belt of north- western China (Jiang et al., 1994). This study...sulphates in the ores range from +9 to +23 %o in the main orebody, with a wider range ( - 4 to +22 %) observed...1994). The ~3 4 S values of the orebody sulphides range from +7 to +20 %o, similar to those at Yindongzi...Tongmugou are Mg-rich (Table 4). Their MgO contents range from 11.86 to 17.78 wt.%, compared with the 3.45...Yindongzi-Daxigou biotites (sample Fe-6); FeO contents range from 11.38 to 17.70 wt.% in the Tongmugou biotites |  | Nokleberg, W.J., Bundtzen, T.K., Berg, H.C., Brew, D.A., Grybeck, Donald, Robinson, M.S., Smith, T.E., Yeend, W.E. (1988) Metallogeny and major mineral deposits of Alaska. Open-File Report Vol. 1988 (88-73) US Geological Survey doi:10.3133/ofr8873 | Report (issue) | | for the Decade of North American Geology (DNAG) by the Geological Society of America. This report is based.......................... 3 LODE DEPOSITS - BROOKS RANGE ..............................................Deposits, Northwestern Brooks Range .. 3 Chromlte Deposits, Northwestern Brooks Range ....................Northwestern Brooks Range .................... 5 Massive Sulflde Deposits, Southern Brooks Range ..........Central Brooks Range ............ 9 Skarn, Vein, and Porphyry Deposits, Northeastern Brooks Range .... |
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