 | | Report (issue) | | Polymorphism & Series: Dimorphous with cordierite. Occurrence: Formed by fusion and recrystallization...underlying coal seams (Bokaro coal¯eld, India); in cordierite veins in a polymetamorphosed pelitic rock (Unazuki...labradorite, corundum, glass (Bokaro coal¯eld, India); cordierite, andalusite, sillimanite, biotite, quartz (Unazuki...Prefecture, Japan. At Pyramid Lake, Washoe Co., Nevada, USA. From the Bellerberg volcano, two km north of Mayen...district, Germany. Name: For the country of ¯rst occurrence, India. Type Material: n.d. References: (1) |  | | Journal (article/letter/editorial) | | JUNE 1973, VOL. 3 9 , P P . 241-3 Low-iron cordierite in phlogopite schist from White Well, Western... Perth, Western Australia SUMMARY. Pale-blue cordierite (complete analysis given; shows total iron oxides...sillimanite, accessory zircon and rutile. The cordierite is in translucent masses to 8 • 8 • 4 c m with...Laboratories an unusually fresh specimen of pale-blue cordierite for identification. The specimen locality was...taken by R. Williamson, prospector, to a cordierite occurrence in the vicinity of White Well (24 ~ 28' |  | | Journal (article/letter/editorial) | | relative to well A1,Si-ordered orthorhombic low-cordierite. Based on microprobe analyses, the predominant...value 4:5 in ideal cordierite M2[A14SisO18]. The most highly substituted cordierite from Blaue Kuppe is...states. Although the substitution KA1 for Si in Mg-cordierite is known to lower the maximum A-value to be attained...modulations as postulated recently for hexagonal cordierite shortly after its growth. Introduction In the...the international literature, the mineral cordierite is usually considered to be a pure (Mg,Fe)Al-silicate |  | | Journal (article/letter/editorial) | | Petrology 9 Springer-Verlag 1982 Very High C O 2 Cordierite from Norwegian Lapland: Mineralogy, Petrology...Republic of Germany Abstract. The most CO2-rich cordierite thus far encountered in nature with about 2.2...Lapland granulite area described by Eskola. The cordierite is optically positive with the highest optic...the optical properties of the degassed Lapland cordierite and on literature data a ternary diagram is given...given, which shows the variations of this cordierite in 2 Vx and birefringence as a function of channel-filling |  | | Journal (article/letter/editorial) | | C O R O N A - C H Á V E Z E T A L . Sierra de Los Loxichas, Puerto Escondido and Puerto Angel areas...locations cited in the text: Cv, Cerro La Vieja; Li, Los Limones; Mi, Rancho Miramar; Sa, San Agustinillo;...Geological map of the Xolapa Terrane in the Sierra de Los Loxichas, Puerto Escondido and Puerto Angel area...and other minor locations: Cv, Cerro La Vieja; Li, Los Limones; Mi, Rancho Miramar; Zi, Zipolite. SYN-DEFORMATIONAL...metamorphic laminae of sillimanite, corundum and cordierite. All this sequence is coexistent with deformed |  | Schreyer, W., Gordillo, C. E., Werding, G. (1979) A new sodian-beryllian cordierite from Soto, Argentina, and the relationship between distortion index, Be content, and state of hydration. Contributions to Mineralogy and Petrology, 70 (4) 421-428 doi:10.1007/bf00371048 | Journal (article/letter/editorial) | | Springer-Verlag 1979 A New Sodian-Beryllian Cordierite From Soto, Argentina, and the Relationship Between...granite massif one of the large porphyroblasts of cordierite was found to contain relatively high amounts...H20 molecules within the structural channels of cordierite to oxygens of the framework, although the Type...70 wt.% and assumed solid solubility between cordierite and the structurally similar mineral beryl, A12[Be3Si6018]...Cern~ and Povondra (1966) analyzed a beryllian cordierite containing unusually high amounts of both beryllium |  | | Report (issue) | | Polymorphism & Series: Forms a series with cordierite. Occurrence: In the albite zone of pegmatites in granulites...Miskovsky (1975) Sekaninaite, a new mineral of the cordierite series, from Dolni Bory, Czechoslovakia. Scr |  | | Journal (article/letter/editorial) | | Significance of Channel and Fluid-Inclusion CO 2 in Cordierite: Evidence from Carbon Isotopes by M. SANTOSH*...undertaken on pure mineral separates from six cordierite-bearing assemblages from Kerala, South India...fluid inclusions and channel-trapped volatiles in cordierite. Field relations, phase-equilibria systematics...systematics, and fluidinclusion studies suggest that cordierite megacrysts associated with orthopyroxene within...rocks of lower Mg/Fe ratios. In contrast, smaller cordierite grains associated with sillimanite and spinel |  | | Journal (article/letter/editorial) | | morphology is also reported (grey lines). (C) Cordierite‐biotite (Crd‐Bt) vs. phlogopite‐ roof morphology...morphology is also reported (grey lines). (C) Cordierite-biotite (Crd-Bt) vs. phlogopite-titanite titanite...two important granite typologies, a pristine cordierite-biotite granite, possible to distinguish between...two important granite typologies, a pristine cordierite‐ biotite by phlogopite, Ti-rich minerals, and...The cordierite-biotite granite is (SiO2in= 68–72 %) and a peraluminous character The cordierite‐biotite |  | | Journal (volume) | | complex consists mainly of garnet gneis ses, garnet-cordierite gneis ses, and hypersthene-plagiodase rocks....stage. On the other hand, the anatectic garnet-cordierite gneisses in the northeastern part of the granulite...gneisses are characterized by the widespread occurrence of garnet, hornblende and clinopyroxene. Adjacent...anatexites often characterized by the occurrence of cordierite. Contrary to the granulitic gneisses of...the platy quartz textures vanish. The garnet-cordierite gneis ses contain as accessories zircon, monazite |  | | Journal (issue) | | Creek Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas...........................................by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico......................... 115 by Richard...Rochester, New York’s Spring symposium to the Los Angeles Micromounter’s Conference held the weekend before...between Minot and Auburn, Maine, in Androscoggin County. The Pulsifer quarry, along with the Keith and...STEVENS, J.P. (1972) Gems and minerals o f Oxford County. Published by Perham’s Maine Mineral Store, 136-153 |  | | Report (issue) | | barite occurrence Pakenham quarry Cedar Hill soapstone occurrence Galetta celestine occurrence Kingdon...Kingdon (Fitzroy, Galetta) mine Stanton lead occurrence Bell’s mine Calabogie area Bluff Point mine Calabogie...Renfrew–McArthurs Mills area Hunt mine Dacre iron occurrence Keyfortmore mine Radnor mine Sunset mine Spain...Mayo marble quarry Renfrew–Madawaska area Renfrew County Road 4 (Bruce Avenue) roadcut Highway 60 quarry...Kuehl Lake occurrence Quadeville East mine Quadeville West mine Gutz corundum occurrence Michaelis corundum |  | | Journal (article/letter/editorial) | | the Punta OttioluPolto Cualdo formation. Field occurrence Migmatites of Porto Ottiolu The migmatite of...concurrently with the breakdown of muscovite: 1) the occurrence of migmatite to the north of the sillimanite... G. Cruciani et al. Taking into account the occurrence of primary muscovite relics, and the textures...Ms Qtz Ab ! Als Kfs melt. The sporadic occurrence of kyanite relics seems to suggest that the melting...produced by reaction (1) may also explain the rare occurrence of ®brolite and the low leucosome content in |  | | Report (issue) | | . . . . . . . . . . . Virgin Lake celestite occurrence. . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . .. Road-cut (Renfrew County Road 4) . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . Gutz corundum occurrence. . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . Michaelis corundum occurrence. . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . Jewellville corundum occurrence . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (issue) | | associated with sulfidic ores (e.g. Sweden, Tennessee/USA), 2. in cavities of of basic effusive effusive rocks...metamorphic rocks (e.g. Hungary, Austria, New Jersey/USA), 3. in limestone contact zones associateq associated...Czechoslovakia, USSR, Utah/USA, California/USA). U tahiUSA, California/USA). Some occurrences represent... Sugilite, Sugilite, A A Second Second Dunn, Occurrence: Wessels Wessels Mine, Mine, Kalahari Kalahari...Kalahari Manganese Manganese Field, Occurrence: Republic Republic of of South South Africa. Africa. Canadian |  | | Report (issue) | | that the sea is encroaching too rapidly on Sussex County. The powerful forces acting to deform the crust...date of 1673. Also, bog iron ore beds in Sussex County were known and utilized starting in early colonial...Brandywine, and greensand mari in southern New Castle County were all located, described, and used in early...the State." Three commissioners, one from each county, were named to hire a ge- ologist: Thomas Stockton...Science of Geology /Pickett N + NEW CASILE COUNTY ~ Scal. I I 0 ...in I ReCENT 10 ~ SCIlf'- |  | | Book (edition) | | have been deleted. In Chapter 7 the properties, occurrence, and uses of about described. Of the more ...noncrystalline like minerals in chemistry and occurrence. These mineral-like substances, called mineraloids...processes means that a mineral must be of natural occurrence; human beings cannot have taken part in its formation...cubic crystals of fluorite; another cave in Wayne County, Utah, contained a large number of enormous crystals...mineralogist not only crystal sizes attained. occurrence of many rare minerals but because of the very |  | | Book (edition) | | cubic crystals of fluorite; another cave Wayne County, Utah, contained a large number of enormous gypsum...also given. Occurrence. The type species for which complete it is of geologic occurrence is given...flakes that Fig. 190. Gold Crystals, Trinity County, California. are present are greatly overshadowed or...Silver up to 16 per cent may be present; that from California carries between 10 and Immmer, Gold has long...nature has been performing this crushing and Occurrence. continents. washing process for are disintegrated |  | | Report (issue) | | ________________ Relation to Jefferson (?) dolomite. _ Occurrence. __ _ -_____-__-______Lithologic character. ____________...____________<>_______ Humbug formation.... _ _____________ Occurrence and thickness___-___-_ Lithologic character....Continued. Morgan (?) formation--__-_--___---______ ' Occurrence and character.___________ Correlation and age..._______ Correlation. _____---_-___-_________ Occurrence and thickness____________ Character. _________________________...__ Park City formation.-.. _________________ Occurrence- _ _______________________ Character. _________________________ |  | | Book | | and such profound erosional features as the Grand Canyon, Ausable Chasm, and the like. The material in this... ZA aX Description of Minerals Actinolite Occurrence: Occurs generally in crystalline schists and...Remarks: A common rock-forming mineral. Albite Occurrence: Occurs in small crystals or, more often...used in the manufacture of ceramics. Analcite Occurrence: Occurs as free-growing crystals or in masses...the garnet, but its color, hardness, and its occurrence in lavas will serve in identifying this mineral |  | | Report (issue) | | Chitradurga districts Karnataka 255 9A.21 Gold Occurrence in Chitradurga districts Karnataka 256 9A.22...Kanara district, Karnataka 271 9A.25 Iron ore occurrence in banded iron formation in North Kanara district...Chitradurga Districts,Karnataka 275 9A.30 Iron ore occurrence in Dasudi, Guruvapura, Vajrapura and Karekurchi...Kanara districts, Karnataka. 284 9A.34 Iron ore occurrence in Chikmagalur and South Kanara districts, Karnataka...ore deposit in Goa area 286 9A.36 Iron ore occurrence in Goa 286 9A.37 Iron ore deposit in Raichur |  | | Report (volume) | | ..................... Distribution and field occurrence. . ............................ 103 104 104........................ Distribution and field occurrence................................ Lithologic character........................ Distribution and field occurrence................................ Lithologic character........'............................. Geologic occurrence............................................ Character...which now form rocky ledges in the walls of the canyon. Lakes are numerous in the lowland areas. The largest |
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