 | | Journal (article/letter/editorial) | | The boron isotopic evolution of the Little Three pegmatites, Ramona, CA James L. Maner, David London PII:...The boron isotopic evolution of the Little Three pegmatites, Ramona, CA. The address for the corresponding...The boron isotopic evolution of the Little Three pegmatites, Ramona, CA James L. Maner IV* and David London...100 East Boyd Street, SEC 710 Norman, OK 73019, USA IP T *email: jlmaner87@ou.edu CR ABSTRACT Tourmaline...axinite from three pegmatite dikes (named Main, US Swamp, and Spessartine) at the Little Three mine near Ramona |  | | Journal (article/letter/editorial) | | Pegmatites: ART Downloaded by [University of California, San Diego] at 03:56 02 March 2016 What TOURMALINE...Australia; (b) foitite, 11 cm, Garnet Ledge dike, Little Three mine, Ramona, San Diego County, California. Varieties...elbaite: (c) rubellite, 10 cm, Himalaya mine, Mesa Grande, California, found by Ralph Potter in 1958, William...terminated, 6 cm, 1991 London Pocket, Little Three mine, Ramona, California; (e) indicolite, 5.6 cm, Aracuai...4 cm, Tourmaline Queen mine (1972), Pala district, San Diego County, California, Jesse Fisher and Joan |  | London, D., Morgan, G. B., Paul, K. A., Guttery, B. M. (2012) Internal Evolution of Miarolitic Granitic Pegmatites at the Little Three Mine, Ramona, California, USA. The Canadian Mineralogist, 50 (4) 1025-1054 doi:10.3749/canmin.50.4.1025 | Journal (article/letter/editorial) | | MIAROLITIC GRANITIC PEGMATITES AT THE LITTLE THREE MINE, RAMONA, CALIFORNIA, USA David LONDON§, George B. MORGAN...73019, USA Abstract Miarolitic granitic pegmatites at the Little Three mine property near Ramona, San...San Diego County, California, USA, possess a bulk composition that closely matches that of a hydrous peraluminous...partially cumulate nor hydrothermal in nature. The Little Three pegmatites are, however, sharply zoned. Chemical...cooling history, field diffusion, Little Three mine, Ramona, California. Introduction The coarse grain-size |  | | Journal (article/letter/editorial) | | Crystallization of the Little Three layered pegmatite-aplite dike, Ramona District, California Received: 24 March...currently is little concensus as to how such dikes form. The Little Three dike near Ramona, California, is representative...100 East Boyd Street, SEC 810 Norman, OK 73019, USA; Fax: (405) 325-3140; e-mail: gmorgan@ou.edu Editorial...investigation of the Little Three pegmatite-aplite dike from the Ramona district, California, feldspar compositions...the George Ashley Block pegmatite (Mesa Grande District, CA) accumulated by crystal settling. Consistent |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Volume Thirty-three, Number Five Articles Gem and rare-element pegmatites of southern California . . . . ... History of the Tourmaline Queen mine, San Diego County, California . . . . . . . . . . . . . . . . ...discovered at the Tourmaline Queen mine, San Diego County, California, by Ed Swoboda and Bill Larson. The...web site at www.wmtucson.com DANBURITE – Aurora Mine, Charcas, SanLuis Potosi, Mexico When in Tucson |  | | Journal (issue) | | Jan/Feb 2024 Vol.99, No.1 ROCKS MINE ."Iii[! iil"J www.tandfonline.com/vram Pegmatite Minerals & Gems...Museum, ME John Rakovan New Mexico Institute of Mining & Technology, Socorro, NM Consulting Editors Joel...Kampf, l.A. County Museum of Natural History, CA Virgil W. Lueth, New Mexico Institute of Mining & Technology...$76 for one year, $124 for two years, 5186 for three years (includes online access). An institutional...across a local area net\,vork. Subscription offices: USA/North America: Taylor & Francis Group, LLC, 530 Walnut |  | | Journal (issue) | | ou sur rendez-vous Elbaite - 7,1 cm de largeur Mine Hima/aya,Mesa Grande,Californie,U.S.A. Coll. : 8...Scovil • Barite surfluorite Crista/: 4 x 3 x 0,4 cm Mine de /'Ave/lan, Var Coll. : G. Mari Photo : l.-D....Jesse FISHER 380 PennsylvaniaAvenue- San Francisco- CA 94107- USA (Traduitde l'anglaispar J. GALVIER)...exploitations teltes qu'Himalaya,TourmalineQueen au Little Three se trouvent aujourd'hui dans les collections...des monts San Jacinto, dans le centre du comte de Riverside,traversele comte de San Diego et se prolongejusqu'a |  | | Journal (article/letter/editorial) | | Center, 100 East Boyd Street, Norman, Oklahoma 73019, USA Abstract Experiments with tourmaline-group minerals...(solid solutions among schorl, dravite, olenite, foitite and, to a lesser extent, uvite) can be stable from...case in point is tourmaline from the Himalaya mine, California. The Na and F contents of tourmaline increase...)3 Si6 O18 (OH)3 F foitite G[Fe2+2 Al]Al6 (BO3 )3 Si6 O18 (OH)3 (OH) magnesio-foitite G[Mg2 Al]Al6 (BO3...thermal stability limits of dravite (magnesio-foitite) in unreversed reactions of (1) cordierite + sillimanite |  | Ertl, A., Rossman, G. R., Hughes, J. M., London, D., Wang, Y., O'Leary, J. A., Dyar, M. D., Prowatke, S., Ludwig, T., Tillmanns, E. (2010) Tourmaline of the elbaite-schorl series from the Himalaya Mine, Mesa Grande, California: A detailed investigation. American Mineralogist, 95 (1) 24-40 doi:10.2138/am.2010.3271 | Journal (article/letter/editorial) | | elbaite-schorl series from the Himalaya Mine, Mesa Grande, California: A detailed investigation AndreAs ertl...and Planetary Sciences, California Institute of Technology, Pasadena, California 91125-2500, U.S.A. 3 Office...from gem pockets in the Himalaya mine, San Diego County, California, including a strongly color-zoned...99) were found in tourmalines from the Himalaya Mine. These correlations indicate that, in the short-range...to promote a continuous transition from schorl-foitite at the pegmatite margin to elbaite-rossmanite-liddicoatite |  | | Report (issue) | | Page 32 Beryl from the Pegmatites of Southern California Jesse Fisher Page 20 Discovery Stoppaniite Fabio...studies in 1811, during A.G. Werner's time at the Mining Academy in Freiberg, Saxony (Germany). From 1826...miners. He was also the gemstone inspector for the mining authority. Breithaupt's legacy is 500 publications...descriptions. T he above is a postcard of the School of Mining in Feiberg, Saxony printed for the 1991 Breithaupt...from the University of New Orleans in Louisiana (USA), with the lowdown on beryl mineralogy An ancient |  | | Journal (article/letter/editorial) | | component, Mn3Al2Si3O12, occurs principally in three geologic environments. One is in coticules, which...(OH)4 Olenite Ol NaAl3Al6(BO3)3Si6O18(O)3(OH) Foitite Ftta o(Fe2Al)Al6(BO3)3Si6O18(OH)4 Magnesiofoitite...Whitney and Evans (2010). a Foitite and Mg-foitite are combined into a single Foitite component in the text...(srl), total foitite (ftt), uvite (uv), indialite (ind), sekanianite (sek), Mn-crd (Mn)] foitite and uvite...uvite components represent total Mg-foitite+foitite and ferruvite+uvite, respectively. a F (Heated directly |  | | Journal (article/letter/editorial) | | THE PULSIFER GRANITIC PEGMATITE, POLAND, MAINE, USA M I C H AE L A. W IS E Department of Mineral Sciences...Smithsonian Institution, Washington D.C., 20560, USA Abstract—A new occurrence of berthierine has been...quantities. Damyanov and Vassileva (2001) distinguished three genetic types of berthierine (marine, non-marine...Crystallization of berthierine from granitic pegmatite, Maine, USA seam’. The pockets are the primary source for gem-...to the west. The true thickness is not known as mining operations have failed to encounter the footwall |  | | Journal (article/letter/editorial) | | of most occurrences (12.5 × 8 cm) from the Tanco mine, Bernic Lake, Manitoba. (c) A large crystal of muscovite...cavity (16 × 12 × 12 cm), Himalaya mine, Mesa Grande, California; the yellow arrow shows the direction...solutions among schorl, dravite, olenite, and foitite) to the lithium tourmalines (dominated by the components...Polychrome elbaite: three crystals with green and pink to red zonation from the Himalaya mine, Mesa Grande,... California; yellow to green crystal from the Little Three mine, Ramona, California. The tallest Himalaya |  | | Journal (article/letter/editorial) | | “schorl” on albite, 16.8 × 16.0 × 14.3 cm, Urucum mine, Minas Gerais, Brazil; Joe Budd photo, courtesy...colorless beryl variety goshenite from the Tanco mine, Bernic Lake, Manitoba, 6.2 × 4.0 × 4.8 cm; David...pegmatite dike from near Palomar Mountain, San Diego County, California. Note that beryl occurs at the margin... the 1991 London Pocket at the Little Three mine, Ramona, California (3 × 2 × 1 meters), displaying a...Black Hills, SD, USA beryl 91 Staatz et al. (1963) Tin Mountain Black Hills, SD, USA complex Li spodumene |  | | Journal (article/letter/editorial) | | (+1 or +2) or is vacant (zero charge). There are three Y-site cations, which can have charges of +1, +2...Because of local bonding of the O(1)-site anion to three neighboring Y-site cations and an X-site cation...However, local bond-valence arrangements for the three Y-site cations most commonly have a cumulative local...(Hawthorne 2002). Nonetheless, local charges at the three Y-site cations as low as +5 (e.g., Li2Al) and as...X-site-vacant group Foitite G*** Fe 2+ 2 Al Al6 Si6O 18 (BO 3)3 (OH)3 (OH) Magnesio-foitite** G Mg 2 Al Al |  | Beurlen, H., de Moura, O. J. M., Soares, D. R., Da Silva, M. R. R., Rhede, D. (2011) Geochemical and geological controls on the genesis of gem-quality "Paraiba Tourmaline" in granitic pegmatites from northeastern Brazil. The Canadian Mineralogist, 49 (1) 277-300 doi:10.3749/canmin.49.1.277 | Journal (article/letter/editorial) | | northeastern Brazil. Despite its importance, very little is known about the differences between the four...may be found in Beurlen et al. (2008). The Batalha mine was described by Barreto (1999) and Wilson (2002)...garnet is also a feature shared by these 281 three pegmatites. Several similar strings of black tourmaline...the quartz core, as can be observed at the Quintos mine, level 460 m (Figs. 5, 6). The cross sections of...of the main “shaft” of dyke 2 in the Capoeira 2 mine. of elbaite with PT generally is distinguished |  | | Journal (article/letter/editorial) | | green Cu-bearing tourmalines from the da Batalha mine in Paraiba state, northeastern Brazil (Koivula and...been mined from other deposits near the da Batalha mine (Fig. 1) in the neighbouring state of Rio Grande...2007). The Mavuco (or Chalaua) mine in the Alto Ligonha pegmatitic district, Mozambique, is the world’s...Table 1 gives the chemical compositions (mean of three determinations) and formulae calculated with the...State, Brazil, showing the location of the Batalha mine (modified from Soares et al., 2007). Isotope ratios |  | | Journal (issue) | | image: Miners at the Pala Chief Mine, San Diego Country, California, circa 1903. On the back of the original...from the Oceanview Mine in Southern California; the 0.72-ct benitoite (left California Gems – More Than...Dallas Gem Mine area, San America’s Royal Gems – Montana and Yogo Sapphires Benito County, California; the... State of Maine phires is from the Gem Mountain Mine, GranTantalizing Turquoise ite Country, Montana...Rare and Beautiful American Gemstone and original mine image by Mark Mauthner. Red Beryl – A Very Rare |  | Ertl, Andreas, Hughes, John M., Prowatke, Stefan, Rossman, George R., London, David, Fritz, Eric A. (2004) Mn-rich tourmaline from Austria: structure, chemistry, optical spectra, and relations to synthetic solid solutions. American Mineralogist, 88 (8) 1369-1376 doi:10.2138/am-2003-8-921 | Journal (article/letter/editorial) | | and Planetary Sciences, California Institute of Technology, Pasadena, California 91125-2500, U.S.A. 5 School...6 3541 Paseo de Francisco no. 240, Oceanside, California 92056, U.S.A. ABSTRACT Yellow-brown to pink...variations in tourmaline from the Little Three pegmatite, Ramona, California, in which the MnO content reached...Eleven small fragments were taken from the rims of three yellow-brown to pink Mn-rich tourmaline samples...the correction procedure was checked by measuring three samples of reference tourmalines (98114: elbaite |  | | Book (volume) | | The Bowers Museum of Cultural Art Santa Ana, California + GEMSTONES OF EAST AFRICA by Peter C. Keller...Nevada; blue, cushion cut topaz (25.30 ct), Ramona, California; brownish yellow octagonal calcite (21.30...(16.62 ct), Ramona, California; deep red cushion cut rhodochrosite (25.56 ct), Sweet Home Mine, Colorado;...Kern County, California; octagonal step cut violetish pink kunzite (26.61 ct), Pala, California. NECKLACE...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75 |  | Siegel, Karin, Wagner, Thomas, Trumbull, Robert B., Jonsson, Erik, Matalin, Gabriella, Wälle, Markus, Heinrich, Christoph A. (2016) Stable isotope (B, H, O) and mineral-chemistry constraints on the magmatic to hydrothermal evolution of the Varuträsk rare-element pegmatite (Northern Sweden) Chemical Geology, 421. 1-16 doi:10.1016/j.chemgeo.2015.11.025 | Journal (article/letter/editorial) | | the Varuträsk rare-element pegmatite (Skellefte District, Northern Sweden) has been investigated using...approximately 11 km west of Skellefteå, in Västerbotten County, Northeastern Sweden (Fig. 1). It is located within...within the Paleoproterozoic Skellefte District, a 150 by 50 km region of greenschist- to amphibolite-facies...geochronology, the geologic setting of the Skellefte District can be briefly summarized as follows (Bergström...rift basin in the eastern part of the Skellefte District (Allen et al., 1996; Bergström, 2001). During |  | Breiter, K., Ďurišová, J., Hrstka, T., Korbelová, Z., Vašinová Galiová, M., Müller, A., Simons, B., Shail, R.K., Williamson, B.J., Davies, J.A. (2018) The transition from granite to banded aplite-pegmatite sheet complexes: An example from Megiliggar Rocks, Tregonning topaz granite, Cornwall. Lithos, 302. 370-388 doi:10.1016/j.lithos.2018.01.010 | Journal (article/letter/editorial) | | of 213 nm (New Wave Research, Inc., Fremont, CA, USA), which was coupled to a ICPQMS instrument with quadrupole...(Agilent 7500ce, Agilent Technologies, Santa Clara, CA, USA). Tourmaline grains were analyzed with an ArF* excimer-based...(Fig. 1b): Homogeneous leucogranite which forms three major sheets, each up to 3 m thick and 200 m NU...albite, and are rich in tourmaline (schorl to foitite). Mica is in NU all cases muscovite/phengite...interpretation, samples have been classified into three principal groups, based on a combination of textures |  | | Journal (article/letter/editorial) | | no influence of boron coordination with oxygen, three- or fourfold, can be recognized: Alkali-free dravite...examples shown in Fig. 2 indicate that, for the three pressures investigated, the fluid compositions,...thermal stability limit of jeremejevite-OH (Je) for three different pressures: 15 kbar (solid lines); 35 kbar...for each PT-condition when coexisting with the three solid phases Je+ Al,BO, +AlBO,. Solubility of Al...ascharite. According to Peter (pers. commun., 1996) all three Mg-borates remain stable up to 50 kbar. Note that |  | Kontak, Daniel J., Dostal, Jaroslav, Kyser, T. Kurt, Archibald, Douglas A. (2002) A petrological, geochemical, isostopic and fluid-inclusion study of 370 Ma pegmatite-aplite sheets, Peggys Cove, Nova Scotia, Canada. The Canadian Mineralogist, 40 (5) 1249-1286 doi:10.2113/gscanmin.40.5.1249 | Journal (article/letter/editorial) | | pegmatites described, for example, from San Diego County, California (Foord 1977, Stern et al. 1986). Signs...ANALYTICAL TECHNIQUES The 40Ar/39Ar analyses of three high-quality separates of muscovite irradiated at...and chart recorder speed of 1 cm/min. AGE DATING Three samples of muscovite analyzed for 40Ar/39Ar dating...analyses (Fig. 6) indicate similar age spectra for the three samples of muscovite, with age plateaus of 367.4...& Laves (1954), are 0.68, 0.71 and 0.78 for the three triclinic samples. The monoclinic samples have distinct |  | Novák, Milan, Cempírek, Jan, Gadas, Petr, Škoda, Radek, Vašinová Galiová, Michaela, Pezzotta, Federico, Groat, Lee A. (2015) Boralsilite and Li, Be-bearing "Boron Mullite" Al8B2Si2O19, Breakdown products of spodumene from the Manjaka pegmatite, Sahatany valley, Madagascar. The Canadian Mineralogist, 53 (2) 357-374 doi:10.3749/canmin.1400092 | Journal (article/letter/editorial) | | Schematic map of the Sahatany Valley pegmatite district. The grey stars represent the main pegmatite dikes...SPODUMENE USA) laser-ablation system and an Agilent 7500 CE (Agilent Technologies, Santa Clara, CA, USA) ICPMS...the assemblage is locally replaced by olenite-foitite tourmaline on contacts with plagioclase during...(Simmons et al. 2001), and Animikie Red Ace, Wisconsin, USA (Falster et al. 2001), rather than in those hosted...from the Animikie Red Ace pegmatite, Wisconsin, USA. Journal of the Geological Society 46, 69–79. FILIP |
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