 | | Journal (article/letter/editorial) | | eclogite-facies metacherts of the Western Alps B. Cenki-Tok and C. Chopin Laboratoire de Geologie, UMR 8538...67083 Strasbourg Cedex, France (Benedicte.Cenki-Tok@illite.u-strasbg.fr) Received October 5, 2005; accepted...candidate for a miscibility gap, if any. 48 B. Cenki-Tok and C. Chopin Introduction Calderite, Mn3 Fe3þ 2...600–650 C), Labrador, Canada (Klein, 1966); with rhodonite, kutnahorite or rhodochrosite, and hematite. 3:...Laytonville, California (Muir Wood, 1982); with rhodonite, grunerite, kutnahorite and deerite. 6: Amphibolite-facies |  | | Book (volume) | | .............................................1 Alaska ............................................................................................346 North Carolina ....................................................................................356 North Dakota ........................................................................................4 Alaska County and Stream Map ......................................................310 New Hampshire – North Groton Area Map ............................... |  | | Journal (article/letter/editorial) | | the Green Monster mine, Prince of Wales Island, Alaska, has yielded superb specimens of lustrous prismatic...from Green Monster claim, Prince of Wales Island, Alaska. Figure 6 (bottom left). A fine dark epidote gwindel...associated with quartz, calcite, rhodochrosite, rhodonite, and ganophyllite (Bonazzi, Menchetti, and Palenzona...this type include the Whalen mine in west-central Alaska; Grand Calumet Island, Quebec, Canada; the Kyshtymsk...randomly dispersed in a fine-grained matrix of rhodonite, rhodochrosite, braunite, and spessartine (Bonazzi |  | | Journal (article/letter/editorial) | | Center, University of Maine, Orono, Maine 04469, USA *Corresponding author, e-mail: esgrew@maine.edu ...nine of which tinzenite is found with quartz, rhodonite, Mn-bearing calcite or rhodochrosite in veinlets...Pxm pyroxmangite, Rds rhodochrosite, Rdn rhodonite. for other axinite-group minerals in the IMA...minerals reported as tinzenite from Huachuca, Arizona, USA and Lucca Province, Tuscany, Italy are axinite-(Mn)...composed of braunite, bementite, tephroite or rhodonite or metachert. Minerals associated with tinzenite |  | | Book (volume) | | .............................................1 Alaska.............................................................................................295 North Carolina ....................................................................................302 North Dakota ...........................................in manganese deposits⎯Manganese minerals and Rhodonite; e Buzzard Cr. and tributaries⎯Chlorite and green...and Feldspar. QUENELDA, NW 2 mi. on Watts farm⎯Rhodonite. TALLADEGA, S 13 mi. along Rte. 7 in road cuts⎯Alum |  | | Book (volume) | | .............................................1 Alaska.............................................................................................295 North Carolina ....................................................................................302 North Dakota ...........................................in manganese deposits⎯Manganese minerals and Rhodonite; e Buzzard Cr. and tributaries⎯Chlorite and green...and Feldspar. QUENELDA, NW 2 mi. on Watts farm⎯Rhodonite. TALLADEGA, S 13 mi. along Rte. 7 in road cuts⎯Alum |  | Cenki-Tok, Bénédicte, Ragu, Alain, Armbruster, Thomas, Chopin, Christian, Medenbach, Olaf (2006) New Mn- and rare-earth-rich epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite-(Ce) European Journal of Mineralogy, 18 (5) 569-582 doi:10.1127/0935-1221/2006/0018-0569 | Journal (article/letter/editorial) | | Verlagsbuchhandlung, D-70176 Stuttgart 570 B. Cenki-Tok, A. Ragu, T. Armbruster, C. Chopin, O. Medenbach...Maurienne Valley, France (Chopin, 1978), and on the north-eastern flank of the Gran Paradiso massif, on either...for their Mn-silicates assemblages including rhodonite, tephroite, friedelite and spessartine (Lacroix...rhodochrosite and Mn-silicates (pyroxmangite, rhodonite, tephroite, friedelite, humite-group minerals)...locality), is dealt with in a separate paper (Cenki-Tok & Chopin, 2006). 571 Pyrénées: vanadoandrosite-(Ce) |  | Biagioni, Cristian, Bonazzi, Paola, Pasero, Marco, Zaccarini, Federica, Balestra, Corrado, Bracco, Roberto, Ciriotti, Marco E. (2019) Manganiakasakaite-(La) and Ferriakasakaite-(Ce), Two New Epidote Supergroup Minerals from Piedmont, Italy. Minerals, 9 (6) 353 doi:10.3390/min9060353 | Journal (article/letter/editorial) | | piemontite, pyroxmangite, quartz, rhodochrosite, rhodonite, spessartine, and tetrahedrite [5–7]. Manganiakasakaite-(La)...(n = 10) (n = 5) SiO2 30.69 29.94–31.79 0.54 rhodonite 31.90 31.19–32.18 0.41 bustamite Manganiakasakaite-(La)...0.07 Y-Al garnet SiO2 30.69 29.94–31.79 0.54 rhodonite 31.90 31.19–32.18 0.41 bustamite La2O3 14.61 13...synthetic glass MnO tot 21.58 21.30–21.81 rhodonite 0.16 rhodonite Nd2 O3 2.21* 1.76–2.69 0.37 synthetic...standard 21.30–21.81 rhodonite 1 estimated tot deviation; 0.18 * Calculated rhodonite in order to yield |  | Bonazzi, P., Holtstam, D., Bindi, L., Nysten, P., Capitani, G. (2009) Multi-analytical approach to solve the puzzle of an allanite-subgroup mineral from Kesebol, Vastra Gotaland, Sweden. American Mineralogist, 94 (1) 121-134 doi:10.2138/am.2009.2998 | Journal (article/letter/editorial) | | associated with gasparite-(Ce), chernovite(Y), rhodonite, andradite, manganoan calcite, and quartz. A structural...formula Ca(REE)AlAlMn2+(SiO4)(Si2O7)O(OH) (e.g., Cenki-Tok 122 BONAzzI ET AL.: ALLANITE-SUBGROUP MINERAL...(Cenki-Tok et al. 2006), where M1 is occupied by dominant Mn3+, and vanadoandrosite-(Ce) (Cenki-Tok et al...fracture-filling mineralization localized in a north-south shear zone. The Mn ores consist of two, essentially...mineralization (rhodochrosite + manganoan calcite + rhodonite + manganoan garnet). The oxide minerals are generally |  | | Report (issue) | | OTHER MAFIC-ULTRAMAFIC METALLOGENIC PROVINCES IN ALASKA (WEST OF THE 141st MERIDIAN) By Jeffrey Y. Foley1...Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product...Mines, Alaska Field Operations Center. Present address: 3301 C Street, Suite 525, Anchorage, Alaska, 99503-3935...Introduction Metallogenic provinces Northern and western Alaska Western Brooks Range metallogenic province Seward...metallogenic province Alaska Range Eastern Alaska Range metallogenic province Central Alaska Range metallogenic |  | Tumiati, Simone, Merlini, Marco, Godard, Gaston, Hanfland, Michael, Fumagalli, Patrizia (2020) Orthovanadate wakefieldite-(Ce) in symplectites replacing vanadium-bearing omphacite in the ultra-oxidized manganese deposit of Praborna (Aosta Valley, Western Italian Alps). American Mineralogist, 105 (8). 1242-1253 doi:10.2138/am-2020-7219 | Journal (article/letter/editorial) | | pyroxmangite, the high-pressure polymorph of rhodonite MnSiO3 (Fig. 1). Because of the strongly oxidized...instead of piemontite as an accessory phase (Cenki-Tok et al. 2006). It is characterized by Ce/La = 8.53...fayalite (Fe), olivine (Mg), orthoclase (K), rhodonite (Mn), ilmenite (Ti), yttrium phosphate (Y, P)...and epidote at metamorphic peak conditions (black star; see Tumiati et al. 2015). The calculated mineral...are both stable at log (fO2/1 bar) = –5.5. Yellow star: preferred retrograde P-T estimate of wakefieldite |  | | Book | | gem Jersey, show pegmatites of New England North Carolina, the Black this type of mineralization...reconnaissance, and scientific studies made on the North American continent since America became a nation...and so on. While most maps are oriented so that north is at the top of the plane having a definite sheet...in other directions, usually latitudes for a north arrow. may not arrow symbol, since the direction...direction is Maps which also include a north-pointing obvious. Map Scales The scale to which a map |  | Tumiati, Simone, Godard, Gaston, Martin, Silvana, Malaspina, Nadia, Poli, Stefano (2015) Ultra-oxidized rocks in subduction mélanges? Decoupling between oxygen fugacity and oxygen availability in a Mn-rich metasomatic environment. Lithos, 226. 116-130 doi:10.1016/j.lithos.2014.12.008 | Journal (article/letter/editorial) | | MA core and spessartine-rich rim (cf. also Cenki-Tok and Chopin, 2006). In the Fe3+-rich core, Cr is present...instead of piemontite as an accessory phase (Cenki-Tok et al. 2006). ED Sb-rich pyrophanite (MnTiO3) was...tephroite (Mn2+2SiO4), pyroxmangite (Mn2+SiO3), rhodonite (Mn2+SiO3), hausmannite (Mn2+Mn3+2O4), braunite...exhumation of subducted AC ocean crust in the North Qilian suture zone, NW China. Journal of Metamorphic...Marcel-AO). Rivista Mineralogica Italiana. 3, 8792. Cenki-Tok, B., Ragu, A., Armbruster, T., Chopin, C., Medenbach |  | | Journal (issue) | | Peggy Norton, Secretary 119'5 Magnolia Blvd.. North Hollywood, ca. IUIOT Wllllam Tirk, Treuurer 3144...SOCIETIES. Annual Convention and Show. " Garnel Star of Idaho." Nez Perce County Fairgrounds, Lewiston...on Rhodon,te. 4.. usually $50.00; Now $30.00. Rhodonite Phe... nt, 3.. mounted on jade, usually $45.00...Australia" with details of rough opal. black opal. black star and blue faceting sapphires. cut opal, opal cameos...13601. Dealers. camping. parking. July 14 and 15. North•••• Oklahoma Gem and Mineral Society. 2nd Biannual |  | | Journal (issue) | | Peggy Norton, Secretary 11945 Magnolia Blvd., North Hollywood, ca. IUI07 WIiiiam Tirk, TrMIUNr 3144...Glauberite - ¼" xi group Scoria Barite - nodule piece Star Crinold Fossiliferous limestone Alunite Zircon -...MINERALOGICAL SOCIETIES. Annual Convention and Show. "Garnet Star of Idaho." Nez Perce County Fairgrounds. Lewiston...■--lful jecle Sparrow w/ garnet eyes. mounIeC1 on rhodonite, 3" long Was $40 00 N-132.00. 74. Fine pearl bracelet...mounlad on rhodoo,te • · uauelly $S() 00 Now P0.00. Rhodonite ...,. rr Ml 3" mounted on Nephrite J- Usually |  | Miyawaki, Ritsuro, Yokoyama, Kazumi, Matsubara, Satoshi, Tsutsumi, Yukiyasu, Goto, Atsushi (2008) Uedaite-(Ce), a new member of the epidote group with Mn at the A site, from Shodoshima, Kagawa Prefecture, Japan. European Journal of Mineralogy, 20 (2) 261-269 doi:10.1127/0935-1221/2008/0020-1783 | Journal (article/letter/editorial) | | Probe standard wollastonite sillimanite Fe2 SiO4 rhodonite Mg2 SiO4 wollastonite LaP5 O14 CeP5 O14 PrP5 O14...et al. (1996). Old name is androsite-(La). Cenki-Tok et al. (2006). Pautov et al. (1993); Sokolova et...(Bonazzi et al., 1996) and vanadoandrosite-(Ce) (Cenki-Tok et al., 2006), respectively. The gap in uedaite-(Ce)...Structure Database. Acta Cryst., B41, 244-247. Cenki-Tok, B., Ragu, A., Armbruster, T., Chopin, C., Medenbach |  | | Book (edition) | | to list more than fifteen hundred localities in North America where gems can be found. This is the only...amateurs alike had not gone out to every corner of North America, discovered the rich gem resources of the...Colorado; and Professor Jack Hanahan of Belmont, North Carolina, with locations in their respective states...venture every year into the mountains and deserts of North America, they enjoy not only the pleasure of seeking...gem minerals have been produced commercially from Alaska to the Mexican border and eastward to Maine and |  | | Journal (issue) | | INDEX TO ADVERTISERS A. G. & M. S. Association Alaska Lapidary Service Allen Lapidary Equipment Classified...limestone gional dip of about five degrees to the north and in most instanees the over10 , = a - ee...on the bank of the Columbia River. 6 air miles north of Vantage, Washington, which is on | S. highway...infré quently. We live 2 or 3 miles b yond the north boundary go State Park, and the goes through the...parcel, $5.50: guaranteed and postpaid MINERALS & STAR ; ugh SAPPHIRES Fine gem quality, a stones of |  | | Journal (article/letter/editorial) | | MANGANIANDROSITE-(CE)*, VANADOANDROSITE-(CE)* B. Cenki-Tok, A. Ragu, T. Armbruster, C. Chopin, O. Medenbach... piemonite, locally ardennite, pyroxmangite, rhodonite, tephroite, friedelite, and humite-group minerals...are known for their Mn-silicate assemblages (rhodonite, tephroite, friedelite, and spessartine). Vanadoandrosite-(Ce) |  | Chukanov, Nikita V., Zubkova, Natalia V., Schäfer, Christof, Varlamov, Dmitry A., Ermolaeva, vera N., polekhovsky, Yury S., Jančev, Simeon, Pekov, Igor V., Pushcharovsky, Dmitry Yu. (2018) New data on ferriakasakaite-(La) and related minerals extending the compositional field of the epidote supergroup. European Journal of Mineralogy, 30 (2) 323-332 doi:10.1127/ejm/2018/0030-2716 | Journal (article/letter/editorial) | | main minerals concentrating this element are rhodonite, spessartine, tephroite, amphiboles, pyroxenes...vanadoandrosite-(Ce) and manganiandrosite- (Ce) (Cenki-Tok et al., 2006), this site is dominantly or completely...et al., 2005), and manganiandrosite-(Ce) (Cenki-Tok et al., 2006). In the structure model for ferriakasakaite-(La)...parameters for solids. Acta Cryst. B, 47, 192–197. Cenki-Tok, B., Ragu, A., Armbruster, T., Chopin, C., Medenbach...and Terrestrial Records of Termination 1 from the North Atlantic Region. Quat. Sci. Rev., 20, 1233–1249 |  | | Journal (issue) | | on the right, looking across the valley to the north of the exploration area, the contact between the...several types are known, including color-change, star, cat’s-eye, and, rarely, iridescent garnets. Colorchange...Colorchange garnets are usually pyrope-spessartine, while star garnets are generally almandine or pyrope-almandine...lamellar stripe-like iridescence, sometimes causing a star (figure 12). The Japanese garnets may resemble some...garnet shown on the left has a distinct four-rayed star. Its layer-like iridescence (right, magnified 30×) |  | | Book (volume) | | tH MSTONESof - NORTH AMERICA ~ VOLUME olor phot raphs yo. Erica and. Harol d Van I [iL Albuquerque...87109 N.M. N_E. Bivd. Gkapats GEMSTONES of NORTH AMERICA ~ NASMI EPPA GEMSTONES OF THE WORLD...+ GEMSTONES OF NORTH AMERICA, by John Sinkankas ON@“THE VOLUME III COVER North American gems from...ct), and pinkish purple (1.35 ct). GEMSTONES of NORTH AMERICA VOLUME III + John Sinkankas ~ Color Photography...Quality Books, Inc.) Sinkankas, John. Gemstones of North America. Vol. II / John Sinkankas. pcm. Includes |  | | Book (edition) | | GEMSTONES $CS of NORTH AMERICA . In Two Volumes $30.00 GEMSTONES OF NORTH AMERICA In Two Volumes ...REINHOLD BOOK / '- ✓ ( ..., ■ GEMSTONES OF NORTH AMERICA In Two Volumes Volume II T ourmaline...lnternatiunal, Inc. F RO. Tl!>PI£CE GEMSTONES of NORTH AMERICA In Two Volumes Volume II John Sinkankas...publication of the first volume of Gemstones of North America in 1959 so much has transpired that the...volume was to extract and present information on North American gemstones from obscure or inaccessible |  | | Journal (issue) | | The Chugach Gem & Mineral Society of Anchorage, Alaska * DIG for sapphires, aquamarines , rubies in the...MINERALOGICAL SOCIETIES FIELD TRIPS Rock collecting in North Carolina by James R. Mitchell A way to find placer...1984 Scholarship Recipients 29 TRAVEL TIPS FOR ALASKA Advice for those who would like to drive to the...sapphires in a variety of colors and In both facet and star quality. Comes complete with washing instructions...pavilion culet facets will line up with the crown star facets. PAVILION 1. Cut 16 facets at 51 degrees |  | | Journal (issue) | | Peggy Norton. Secretary 11945 Magnolia Blvd .. North Hollywood. CA 91607 Edwin Porter. Treasurer P.O...132.00. 11. Fine carwlng of a llhlnoceroe In rhodonite: one horn, 4" . Very beautiful .................seal, 3" 114.00; Polar Bear. 3'n" • $10.00. St. Rhodonite CMYlng of a ...tact ••,..... Excellent detail...us.oo. 17. Fine N1phrlle Jede llrdL Mounted on rhodonite blocks w / garnet eyes. Hummingbird w /Jade beak...of Mercy, 4". Very good detail. '30.00. 100. Rhodonite blrde mounted on Jade block■. Gamet eyes. a) Hummingbird |
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Tok, Fairbanks North Star Borough, Alaska, USA