 | Echigo, T., Kimata, M., Kyono, A., Shimizu, M., Hatta, T. (2005) Re-investigation of the crystal structure of whewellite [Ca(C2O4)·H2O] and the dehydration mechanism of caoxite [Ca(C2O4)·3H2O]. Mineralogical Magazine, 69 (1) 77-88 doi:10.1180/0026461056910235 | Journal (article/letter/editorial) | | intermediate weddellite [Ca(C 2O4)´2H2O] stage. Infrared spectra obtained from caoxite, weddellite and whewellite...whewellite and caoxite and the unique bands of weddellite. The structure refinement at low temperature...structural features of whewellite with those of weddellite and caoxite suggests that caoxite and whewellite...consisting of Ca2+ ions and oxalate ions although weddellite does not. It is additionally confirmed that the...of caoxite into whewellite would not occur via weddellite. Essential for this transformation is the dehydration |  | | Journal (article/letter/editorial) | | organiques sont des composés organiques naturels ayant à la fois une composition chimique et des propriétés cristallographiques...cristallographiques bien définies. Leurs présence témoigne de la concentration élevée de certains composés organiques...sort et le comportement de molécules organiques dans la lithosphère. Dans le but de contribuer à l’essor...comprend quatre thèmes principaux. La première section porte sur la définition générale des minéraux organiques...deux groupes nommés ci-haut. La deuxième porte sur la cristallochimie et la géochimie des oxalates, les |  | | Journal (article/letter/editorial) | | この鉱物グループには結晶水の数が異なる， whewellite [Ca(C2O4 )･H2O], weddellite [Ca(C2O4 )･2H2O], caoxite [ Ca ( C2O4 ))･ 3H2O...1998; Tyra et al., 2007)。また，日本海の海底堆積物中で発 見された weddellite は，日本近辺で発見された唯一の有機 鉱物である(Matsubara and Ichikura...hydrogen-bonds. には回復しない。なお， caoxite の脱水反応において， 2 水和物である weddellite が現れない理由は，次に説明する。 Figure 6 は， caoxite と whewellite...へ転移するこ とが判明した(Echigo et al., 2005)。 一方， 2 水和物である weddellite には，その結晶構造中 合によって各層が波状に折りたたまれている( Fig. 6a )。...シュウ酸―カルシウム結合によって平面的に各層を構成し zoli and Domeneghetti, 1980)。weddellite は，加熱に伴い 114 ° Cで脱水し，水分子を持たない anhydrous calcium |  | Rouse, R. C., Peacor, D. R., Essene, E. J., Coskren, T. D., Lauf, R. J. (2001) The new minerals levinsonite-(Y) [(Y, Nd,Ce)Al(SO4)2(C2O4) · 12H2O] and zugshunstite-(Ce) [(Ce,Nd,La)Al(SO4)2(C2O4) · 12H2O]: Coexisting oxalates with different structures and differentiation of LREE and HREE. Geochimica et Cosmochimica Acta, 65 (7) 1101-1115 doi:10.1016/s0016-7037(00)00568-8 | Journal (article/letter/editorial) | | Ce)Al(SO4)2(C2O4) 䡠 12H2O] and zugshunstite-(Ce) [(Ce,Nd,La)Al(SO4)2(C2O4) 䡠 12H2O]: Coexisting oxalates with...Ce)Al(SO4)2(C2O4) 䡠 12H2O] and zugshunstite-(Ce) [(Ce,Nd,La)Al(SO4)2(C2O4) 䡠 12H2O], occur in an evaporite assemblage...minerals. Copyright © 2001 Elsevier Science Ltd (Ce,Nd,La)Al(SO4)2(C2O4) 䡠 12H2O, have unusual and complex...levinsonite-(Y), and zugshunstite-(Ce). Coskrenite-Ce, (Ce,Nd,La)2(SO4)2(C2O4) 䡠 8H2O, has been described elsewhere...12H2O, and that for zugshunstite-(Ce) is: Y 0.00 La 0.09 Ce 0.54 Pr 0.07 Nd 0.26 Sm 0.03 Eu0.01Gd0.01Dy0 |  | | Book (volume) | | Lavrion, Greece (6) and Cu-poor adamite from Ojuela mine, Mexico (7) IR spectra of acid salts (silicates...Ca2B4O4(OH)7Cl·7H2O Locality: Salar de Carcote deposit, El Loa province, Antofagasta, Chile. Description: Colourless crystal...borax deposit, Salar del Hombre Muerto, Salta province, Argentina (type locality). Description: Colourless...Arsenato-Borates Sussexite 29 Mn2+BO2(OH) Locality: Gonzen mine, Sargans, St. Gallen, Switzerland. Description:...District, Vakinankaratra Region, Antananarivo Province, Madagascar. Description: Grey grains from the |  | | Journal (issue) | | Elias mine, Czech Republic Mrazek et al. (1994) report an occurrence of namibite from the Elias mine, Jachymov...5’6Evans-Lou pegmatite, Quebec CZECH REPUBLIC 7Elias mine, Jachymov ENGLAND 8Buckbarrow Beck, Cumbria GERMANY...Hausach NAMIBIA 10Khorixas UNITED STATES 3Stewart mine, Pala district, California Deposit Type Bismoclite...pucherite, U-minerals Hydrothermal quartz vein Lodi #4 mine, near Chilcoot, California Bismite, bismutite,...Beyerite, schumacherite Pegmatite 4 White Queen mine, Pala district, California NEW OCCURRENCES Pucher |  | | Journal (issue) | | IV, pubbliciu inf. al 70 % Pcriodico trimcstrale di infonnazione e cultura mineralogica edito da.\ Gruppo...Paleontologico Lariano, il Gruppo Orobico Minerali e la Federazione Nazionale Gruppi Mineralogici e Paleontologici...G.~.L GRUPPO MINERALOGICO LOMBARDO - Musco Civico di Storia N:iruralc C.so Venezia 55 - 201 21 MILA.1...AMMINISfRAZIONE Museo Civico di Storia Katurale C.so Venezia 55 - 20121 Milano COORDTh"ATORE di REDAZIO:\'E Erberto...Pubblicita inf. al 70o/o R cgistr:rzione Tribunale di Milano n. 226 dcl 30.6.1979 Posizione ISSN 0391 - |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...the revolution in 1997. Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga...Katanga administrative region again. The former Kivu province is now divided to three regions: INTRODUCTION...conditions in the gold-bearing "greenstone" in Abitibi province in northern Ontario and Quebec. Some genetic problems |  | | Book | | 1000° Mots inc. Native Gold on Quartz, Paymaster mine, South Porcupine, Ontario / Photo by Brian Boyle...Marquis imprimeur inc. Barite on Quartz, Rock Candy mine, Grand Forks, British Columbia / Photo by Ken Mayer...Mayer Publisher Pyromorphite, Society Girl mine, Moyie, British Columbia / Photo by Ken Mayer Mineralogical... Ontario Canada Diopside on Grossular, Jeffrey mine, Asbestos, Quebec / Photo by Jeffrey A. Scovil...including amateur col- lectors, company executives, mine owners, and vari- in the appropriate position. |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Short Hills, New Jersey. Renato Pagano: Milan, Italy. Ole V. Petersen: Geologisk Museum, Copenhagen,...AL AK AZ AR CA CO CT DE FL GA HI ID IL IN IA KS KY LA ME MD MA MI MN MS MO MT NE NV NH NJ NM NY NC ND OH...British Columbia NF Labrador (part of Newfoundland Province) MB Manitoba NB New Brunswick NF Newfoundland...Rendiconti APK AS AST ASTR AUCG AUF AUSM B&B BCGF di Sciénze Fisiche, A. P. Komyakov, Mineralogy of...Archives de Sciences Atti della Accademia della Scienze di Torino Advances in Sciences and Technology in the |  | | Journal (volume) | | (Romania) (Slovakia) (China) (Germany) (Poland) (Italy) (Czech Republic) (Romania/USA) (Germany) (Hungary)............................319 EM61 Mineralogy of mine wastes and contaminated soil......................obtained on whole-rock samples and insitu by EMPA and LA-ICP-MS methods applied to primitive melt-inclusions...revealed that phosphorus is also incorporated into the di- and tri-calcium silicate lattices by two other coupled...2* & Giannini, M.1,3 Dipt. di Scienze della Terra, Università di Pavia, Italy (*michele.zema@unipv.it) |
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Cerchiara Mine, Borghetto di Vara, La Spezia Province, Liguria, Italy