 | | Journal (issue) | | Play-of-Color Opal in Vesicular Basalt from Zimapán, Hidalgo State, Mexico Robert Raymond Coenraads and Alfonso...jadeite with copper inclusions • Labradorite from Mexico • Gem news from Mogok, Myanmar • Moonstone from...of the spectra. Untreated cultured pearls from Mexico and South America may show a GEMS & GEMOLOGY ...(2004) Cultured pearls from the Gulf of California, Mexico. Gems & Gemology, Vol. 40, No. 1, pp. 26–39. Liu...PLAY-OF-COLOR OPAL IN VESICULAR BASALT FROM ZIMAPÁN, HIDALGO STATE, MEXICO Robert Raymond Coenraads and Alfonso |  | | Journal (issue) | | Mineraliensammeln im Steinbruch Juchem wieder möglich 7-11 Grossular 13-17 Die Pegmatite von alto Ligonha in NordMozambique...(4), 07.00 44-48/86 Tigereye 54 Cooks Peak, New Mexico (agaat e.a.) * LAPIDARY JOURNAL 54 (6), 09.00..."bruin looderts" afkomstig van Cardenal Zimapán, Hidalgo, Mexico, een nieuw element, dat hij "erythronium" |  | | Journal (issue) | | Mn 2+, respectively) and ugrandite (uvarovite-grossular-andradite; X = Ca2+ and Y = Cr3+, Al3+, and Fe3+...spessartine, almandine-spessartine, pyropespessartine, grossular, andradite and grossularandradite) and eight varieties...% pyrope, 33.65 mol.% spessartine, 6.10 mol.% grossular and 7.50 mol.% almandine (sample 9), which is... 70 80 90 0 100 Andradite Grossular Figure 3: Uvarovite-grossular-andradite triangular plot of the...pyralspite series. For details see Table Ia. 3.6 3.4 Grossular 599 3.0 634 3.2 408 534 404 939 1.8 |  | | Journal (issue) | | Mexico ineralogical Record September-October 2003 ❖ Volume 34 Number 5 ❖ $20 Wayne & Dona Leicht,...Van Pelt, Los Angles Mexico Special Issue II The Ojuela Mine Preface to Mexico-II1....................Photo courtesy of Peter Megaw. Mexico-II December, will be Mexico-III, covering a selection of several...and we are now turning our attention to plans for Mexico-V. This series will continue until we have covered...against this possibility we set aside 300 copies of Mexico-I from 1998, which we have just had nicely hardbound |  | | Journal (issue) | | News International: Large tsavorite and green grossular from Tanzania. G&G, Vol. 40, No. 1, pp. 72–73...pearls from French Polynesia, the Cook Islands, and Mexico—although the global recession at the end of the...Oyo State), and Tanzania (tsavorite or green grossular from around Arusha and Merelani, and various garnets...Kenyan border at Loliondo (figure 7). Both Japan and Mexico produced some interesting andradite showing iridescence...and government regulations. Classic localities in Mexico (Querétaro area) and Brazil (Piauí State) were |  | | Book (edition) | | cementation zone Barranca de Cobre, Chihuahua, Mexico Anilite, Bornite, Chalcocite, Chalcopyrite, Digenite...hydrothermal La Leonora Mine, Jalpa, Zacatecas, Mexico Acanthite, Chalcopyrite, Covellite, Galena, Mckinstryite...Mine, Teloloapan, Mun. de Teloloapan, Guerrero, Mexico (sample: Hanel/ Altherr); PPL B Metacinnabar (lamellar...del Oro, Mun. de Concepción del Oro, Zacatecas, Mexico (sample: Melcher/ Oberthür); PPL B Euhedral freibergite...Coahuila meteorite, Bolsom de Mapimí, Coahuila, Mexico Alabandite, Graphite, Kamacite, Orthoenstatite |  | | Book | | structure, found in Xiquipilco, the Toluca region in Mexico. M8 Lake and bog iron ore, mainly consisting...at Gleichenberg, Steiermark in Austria. M27 Grossular Ca3(Al,Fe)2(SiO4)3 from Nordmark, Filipstad in...Gregor, GB Klaproth, Germany 23 Vanadium del Rio, Mexico Sefström, Sweden 24 Chromium Vauquelin, France...Rushes in the Modern Era 5.2.7.1 South America and Mexico As previously mentioned, knowledge of gold, its...Aztecs and Incas, and – above all – from mines in Mexico, rich in silver but also in gold. The efforts of |  | | Report (volume) | | Permian evaporites from the Salado Formation of New Mexico also contain a similar sequence of minerals (Lowenstein...Lowenstein 1988). The Permian Salado evaporite of New Mexico (Lowenstein 1982, 1983, 1988) carries many good...anhydrite from a sabkha, northwest Gulf of California, Mexico. In JL Rau, LF Dellwig (Eds) 3rd Symposium on Salt...anhydrite in Permian shelf sediments, Texas and New Mexico. Am Assoc Petrol Geol Bull 47:1726-1732 Logan BW...Permian Salado Formation of west Texas and New Mexico. In CA Handford, RG Loucks, GR Davies (Eds) Depositional |
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